BrianWilly :
"I'm intolerant towards mutants because I'm misinformed and small-minded" is a mistake. "I'm literally killing mutants and/or devising methods to kill mutants" is a crime, and the X-Men have historically not shied away from defending themselves -- violently if necessary -- against such crimes, and punishing said criminals to the fullest extent of the law.
The idea that victims of oppression and persecution should somehow owe it to their oppressors to be peaceable and complacent is a fantastic example of an oppressor's attitude towards the people they're oppressing. I've said this elsewhere, and I'll say it again: An entire persecuted demographic is not obligated to react benevolently to the systemic institution that is persecuting them. "Hey look, you might be victims of hatred and violence, but you still have to be nice and polite! Sure, you might literally be dying, but won't someone please think of the poor murderers who are killing you? Otherwise you're just as bad as them!"
It's an absurd mindset, and any writers or readers who hold the X-Men up to that specious standard in this day and age should probably reevaluate their own standards towards victims of real life persecution.