Has Wanda done good in any of her MCU appearances? She was a downright villain in Ultron. She killed a bunch of people (accidentally?) in Civil War, she really only fought to defend the person she loved in IW and ultimately failed at even that task like 3 different times. She fought Thanos to a standstill, ultimately causing him to bring on more destruction in EG. And then she went back to being a downright unapologetic villain in this. I mean she walked past all those people she straight up tortured and didn't even apologize or show remorse....she just left them to freaking clean up her mess probably with no end of psychological damage. If there's a character in these movies that the Avengers need to put down, it's her. She's ultimately powerful with very little control or stability.