As I said before, I made this blog discussing the symbolism behind the first and second season of SVTFOE, if you have read that blog then you should know what to expect. If you came thinking that I would be discussing shipping then thats a story for another day because there isn't much elaboration behind starco in the season, depending on the success of this blog, I'll discuss Jarco and Starco in another blog after the season involving it has ended. Lets get started.
At first viewing Star vs the Forces of Evil seems to a stereotypical disney show involving a royal family, deformed and non-human enemies and so on. As the series progressed it did a deconstruction of the standard disney and anime tropes, it discussed racism, identity and imagination and many more. I'll discuss these subjects individually and try to be as factual and unbiased as possible so don't expect headcanons/fan theories but I will only mention one because it follows through with one of the subjects in this analysis. I will only mention the events in the series.
This is the easiest one to do because of the amount of times that has been used but there hasn't been much comparisions to real life effects of racism. The most reacurring theme in the episodes of the first season is the subject of racism and tainted history/identity, I remember once being involved in a discussion about the actual name of the monsters' species and I remember mistakenly saying that the monsters were an unnamed species and monster was just a placeholder name.
Looking back on it, I realise that "monster" is more or less a substitute for a racial slur and the comments about monsters being savages and barbaric from Star as well as the mewni inhabitants parallel a real event during the 1930's. In the 1930's during an immigration situation as a result of WW1, white europeans believed that white people weren't just socially superior to someone of non-white ethnicity but they also believed that they were biologically superior such as believing that the head size of a non-white person was smaller which meant that they were idiotic because the brain would of been smaller. Star viewed the monsters as pure evil for not being a mewman. This was described as "scientific racism" during the 1930's.
During the 1930's even if you had a relative who was a non-white person then you weren't equal to any white person, if you did have a parent who was non-white or you were born out of wedlock between an interactial couple, then you were not equal a white person and would recieve slurs or racist metaphors. The headcanon of Toffee being a descendent of Eclipsa perfectly exemplifies this because he would of been born out of wedlock because Eclipsa sacrificed her throne for love, even though he shows high inteligence and has a humanoid form. He's treated as indifferent to the monsters and he will not received the thone due to his racial heritage, gender and appearance. If we ever see an episode of Star vs' which focus' on Queen Eclipsa, then this 1930's themed racism will treat her romantic views of her husband as a parallel of "negrophilia", a french term in the 1930's which is described as a fascination with black culture and objectifying a black person as just a craze or a latest trend at the time.
Deconstructing the tropes
Star vs the Forces of Evil was directly inspired by anime shows such as Sailor Moon which often shown through the references and comments by series creator Daron Nefcy. Stars placement on earth parodies these tropes as well as show that these characters cannot exist in reality without being reckless, destructive and callous with their sense of purity and abilities.
Marco is supposed to be the audience surrogate, his reactions are the most natural at first and he takes the role as the only sane man. He's like Alice from Alice in Wonderland, he is the observer and holds the most accurate reactions to strangeness and magic. In the first episode, Marco is understandably freaked out by Star's magic and is the only one to be disturbed by the chaos that ensues. Star is an anti-hero and is in a world that holds no magic and is technologically advanced when compared to her own world. When Star entered the dimension, puppies shot lazers out of their eyes, Marco would commonly suffer from her magic spells. Star would hold no reaction to her recklessness and how it effects Marco's and other peoples health such as turning one student into a pinyata, turning the teacher into a troll and burning off Marco's hair.
Star cannot exist in the real world without being a sociopath because most of her actions are unheroic and reckless. The show also deconstructs the idea of friends becoming lovers. Before the reveal of Star having a crush on Marco, it was shown as something neither side wants, Star objected to the idea of dating Marco when Mr Candle asked her if she had a lover because she'll be ruling Mewni alone. She said that dating him would be weird and this is proven in the future because both Star and Marco suffered the "I love you" stigma because Star's crush on him was publicly revealed and the two became awkward with each other in the next episode.
The blood moon is what cements this deconstruction because the blood moon can be seen as a curse between two people which forcefully ties their souls together into becoming soul mates, Star and Marco are friends but what if they actually deeply hated each other. Marco is the best example of the moon's deconstruction because he's had a crush on Jackie-Lynn Thomas since he was in kindergarten and has made alot of progress to be with her but due to the dance with Star. He may have just doomed his relationship with Jackie but since this is an alternative view of the moon, this isn't likely to happen.
Identity and the Liberties of Hopelessness
In season 2, Marco received the most character development between the two protagonists such as becoming less safety minded and developing the courage to date Jackie. Marco's sense of identity was best shown when he decides to progress to a red belt after fearing that he has made no progress in growing up. Star's sense of identity was more shaken in comparison to Marco's because unlike Star, Marco's future isn't planned and he does have a choice in what he wants to do with himself whereas Star has to rule Mewni regardless of the fact that she doesn't want to or fears/hates the responsibilities. Marco consoles her by telling Star that even though she has to rule Mewni, she doesn't have to follow tradition and can rule it in her own way. Marco is implied to be an anti-nihilist, a person who see's life as meaningless, isolated and purposeless but expresses optimism and hope in spite of this.
Marco has kept Jackies drawing of a watermellon because it reminds him the isolation of humanity and the world as well as how humanity is on the border of absurdity but will inevitably hold no purpose, direction or meaning. In spite of this, Marco is accepting of absurdity and holds no strong reactions to magic or non human dimensional beings despite his love of fighting.
Imagination and Growing Up
Star's cleaved wand was the most directly symbolic presence of growing up, In the first season of Star vs', Star was the most child-like of the two characters and used her wand for any reason but it was mainly used for fun or for the sake of using it. As Star begins to mature, she begins to use her magic less and less and only using it when it's necessessary. In the first season Star would get into fights with monsters as soon as they appear but in season 2 she's started to reason with monsters rather than immediately beat the living daylights out of them until they retreat or she gets bored.
Like in real life, imagination isn't used as much as it was as a child, teenagers become more grounded and less focused on creating imaginery friends or fantasy worlds without drawing or doing something creative with it. It doesn't mean that imagination "dies" with age, it just receives less focus as you grow up because you have to focus on the future or your social relationships. Star started to think against the traditional views of non-mewmans or monsters and became more tolerant and forgiving of their reactions.
This has been my personal analysis of SVTFOE, I deeply apologise if the subjects were uncomfortable or offensive it was the phrasing of the time. I'm sorry if it appears muddled because I have some difficulty speaking at length.
I'm sorry if there is spelling mistakes or grammar failures and if you are interested in this sort of thing, give your own symbolic views or point out any flaws in my analysis because this is an alternate interpritation. Depending on the events of season 3 and 4, I'll do a symbolic analysis of those events unless I have done it before.