Sue Richards also trusted that same villain and so has the X-Men. It's not strawman to point out the hypocrisy and sexism in some of the hateful comments. You just don't like being confronted with that.
Wanda being rewritten to resent mutants was terrible.
It's canon that she didn't know what was going on or how to stop it and completely lost her memory.
The amount of deaths flucuated so much that no one really knows the exact number. Because it wasn't important to writers.
Wanda was remorseful at first. It didn't matter anyway. Nothing could make up for it. Marvel botched redemption for drama. Because pissing off X-fans is easy and fun for them.
Again, don't be mad when people point out the similarities. Wanda doesn't exist in the universe alone. And there are very few heroes without some evil arc these days.