At the same time, I don’t think that “mutants are dangerous” is a good counter-argument; show me a persecuted minority that wasn’t believed to be dangerous to the majority or to have unnatural abilities. The fact that mutants exaggerate the historical rhetoric doesn’t make it a good argument.
Mutants exist in a world in which Galactus and Mephisto are real; the fact that public policy focuses on the “mutant threat” is ultimately due to feelings of inadequacy, of being an evolutionary dead end, not a clear-eyed risk assessment. Hence the constant use of the scientifically-incorrent Neanderthal metaphor:
