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Exactly. His reason was 'because Snape exists', which must mean the wealthy, popular pureblood couldn't have possibly bullied the poor, unpopular halfblood with no serious consequences because of class. I cannot see the correlation. Lily was simply too pretty to be hanging out with that greasy weirdo, so James, the noble boy that he was, just had to protect her from him! That's it!
As a descendant of sea sponges, whose ancestors were ruthlessly exploited by Roman patricians for their decadent baths, as someone whose great-great-great-sponge ancestors experienced the full weight of class oppression when rich Romans used them in their thermal baths, as someone with deep sponge trauma, I understand better than anyone the dynamics between different social classes.
And I declare — James Potter didn't “bully” Snape because he was poor