Harry Potter and the Order of the Phoenix question

I don't understand why everyone loves Snape. He bullied kids that to me negates the sympathy I would have felt for him due to being bullied by James going up. "Hurt people, hurt people," is a stupid phrase for people who can't take accountability. I think it's unfair to compare them morally since James died so young. We'll never know who he could have become whether that would have been a good person or not. I do think that in terms of maturity the case can be made that James grew to be a more mature adult than Snape was as their is no evidence that he continued bullying past adolescence. I could write pages on how Snape doesn't deserve the world's sympathy for doing one right thing out of the several evil things he did but that is not the question or discussion at hand haha.

i dont know, by the end of the movie i really started to like severus. he was treated badly by harry's father and in the end he turned out to be a "seceret spy" for dumbeldore. he was the one that dumbeldore trusted the most. also it broke my heart when i found out he loved harry's mother ):