Mutant (Marvel Comics)
In the Marvel universe normal people often hate and fear mutants. This is  because they think mutants may make normal humans extinct. They fear what they do not understand. They are jealous of them having superpowers. Bigotry and xenophobia are also reasons for hatred of mutants. In the Marvel universe, anti-mutant feeling has led to the separation of mutants from society. It has led to  mob violence and government sponsored attempts to fight mutants.