MJ isn't helpless, she's KO'd the Chameleon with baseball bat when he pretended to be her husband.
It shouldn't be for them, it should be for her fans and the Avengers fans. They'll hate her anyway while giving Mr. Sinister a pass. I'd love for Marvel to put characters like Cyclops on the stand and have a lawyer, like Murdock, dismantle him by bringing up how he personally told Wanda not to re power mutants, as well as trying to kill her with the X-men during Children's Crusade, as well as comparing how he acted when he and Jean were possessed by the Phoenix. They could make a mini-series just about people on trial without the super-heroes aspects and I'd buy it if it's written correctly.
Xavier needs to be held to account for failing Wanda as a mentor in that time period, it was hardly his best showing as a therapist and everyone forgets how deep he was with containing Wanda. Nobody blames him for failing her when she needed help.
Speaking of therapists how the writers have acknowledged the mental struggles characters would realistically have with being possessed and controlled by powerful forces with Wanda, but this has had the opposite effect by making her look crazy when others who should be showing these same symptoms like Cyclops and Jean don't have anywhere near the psychological affects when they really should. Cyclops was possessed by Apocalypse, as well. He should be in a more fragile mental state then Wanda, fighting depression like she does. This has the unfortunate side effect of making her look mentally fragile and them walking away strong mentally.
Wanda's never been mind controlled in House of M, th power overwhelmed her and she had the added pressure by people wanting to kill and manipulation by others.