It's widely believed that Loki hates his brother. All this "no matter how much he said he hates Thor." - it is everywhere in the fandom. But the fact is that he NEVER said it. he could've implied it, but I personally don't think Loki hates Thor
Wanda lost more than her confidence. They all lost a bit more than just what's on here. Steve lost some of the people he called family. Natasha is forced to be a government pawn again. Wanda lost her freedom, her confidence, her trust in people.