I see what you mean but I mean Hydra! Cap wasn't the real Steve just an inferior Nazi piece of crap created by that annoying little Cosmic Cube brat that Spencer created (Is it wrong to want to murder a child if that child is REALLY annoying? Asking for a friend)

Pym didn't choose to become Pymtron and Carol was basically going through Cosmic Post Traumatic Stress Disorder during the whole Civil War II thing

So I get what you mean about how most of Thor's friends have acted like assholes but I would argue that with most of them it either wasn't them, wasn't their choice or they at least had the justification that they were Going Through Some Stuff when it happened

Tony's actions in Civil War on the other hand were literally just him going "I think I would like to commit war crimes on purpose today" and then lobotomising himself so he could avoid taking any responsibility for it