Evan is a weakass B*TCH

Both of them are weakass bitches imo. Sure, Sasuke had a traumatic past, but instead of dealing with it, he let it consume him and was a flaming trashcan for basically the whole time. Wether someone has trauma/mental illness or not, does not give them the right to be a bitch.
Evan has even less reason to act like this, since as you said, he simply can't stand that a slave is better. Unless he, for some magical reason, regains his common sense, he is bound to to do some evil shit and cause misery to himself and people around him. Currently he is less of a bitch than Sasuke, simply because he didn't fuck up quite as bad yet. Yet. I wouldn't be surprised if he escalated things very fast.

I don't understand your point. It's not like Sasukr had a support system or was even put in therapy. Didn't Konaha place an 8 year old right back into a home that his family was murdered in? Then proceeded to be brainwashed into a child soldier to fight for a village that, unknowingly, ordered the massacre of his clan.
Sasuke was more disturbed than a "b*tch." He was a child that never got helped.

Evan does give me Sasuke vibes, but he's really just an a**hole at the end of the day. His motives are pretty ironic and he needs his a** kicked again. But I also only blame him like 99% because it's a way of life. He's a noble who lives in a world where a group of people are considered below him.

Regarding Evan, even his father was known for his compassionate heart instead of his magic talent. Although slave were a lower class even the current king was a former slave plus with his father's disposition he shouldn't have that much antagonism towards slaves. At most he should be 'don't associate with me' but from the start he was an weakass btch bullying nero and the other halfelf. His way of life should not have the common sense of looking down on a slave if his father was kind so 100% evan is a weakass whiny btch