If Erik has spent his life tracking the mutants who killed his family, doesn't it undercut the idea that he's reacting to persecution from humans? That he spends his life believing he's defending mutants from humans?
Wasn't he tracking down the people
who killed his family? I mean he didn't necessarily know Kevin Bacon was a mutant or even what mutants or people with abilities were or that there were others.
One thing that got lost with his Nazi hunting is Erik as a family man. In the comics, he was married doctor and the father of a little girl.