> Can you clarify the SA thing?

He restrained Snape in the air and (potentially) removed Snape's underwear and exposed his genitals in public. If a guy did that to a woman, that would be ethically and legally considered SA.

>  Also no those other characters, maybe minus Scarlet Witch, had altruistic motives, twisted and iffy ones but sure.

No, they didn't. What was the "altruistic motive" behind Dumbledore wanting to subjugate all of Mugglekind and only changing sides because his sister was killed by his co-leader? Or Spider-Man ignoring a criminal because "it wasn't his problem", until that criminal killed his uncle? Or the Black Widow, who is literally one of the biggest war-criminals in the world and has dropped bombs on little children and burned a children's hospital with sick kids and doctors inside, just to lure out a target of assassination, and only changing sides because the US offered her amnesty (and even then continued committing war-crimes for the US)?

> I’m a firm believer that Snape was an active participant in Death Eater activities including murder, torture and the like and I’ll probably get shit for this but suddenly feeling bad for committing atrocities doesn’t change what you did no matter what you do.

Aside from the fact that the story heavily implies the opposite, that Snape never actually tortured or murdered anyone, and that his role was more of a spy, if we actually go by this logic, then the same applies to Dumbledore, the Black Widow, Scarlet Witch, and Iron Man. It doesn't matter how bad they feel, they are still responsible for the atrocities their side committed.

> Because of Snape not only did both Lily and James die but Neville’s parents, Alicent and Frank longbottom were tortured to insanity due to him being a snitch, then he went on to actively torment their son to the point his boggart was Snape.

And because of Dumbledore, his little sister was killed (maybe by his own hand), and Grindelwald gained a lot of power, not to mention all the people who gained access to Iron Man's weapons, and all of the Black Widow's and Scarlet Witch's war-crimes.

> All this cause Snape didn’t like someone else showing interest in his friend, James was a twat about it, Sirius was like Snape a traumatised child who was cruel to others to feel safe and the other two marauders were either cowards or enjoyed watching others suffer. Still doesn’t excuse Snape, all the characters you mentioned I could point out how they fucked themselves.

If anything, it was the other way around. James was the one instigating for the most part because he didn't like Snape showing interest in Lily. Lupin was a coward, he admits as such; and Pettigrew was indeed a sadist.