Evil: an action taken based on an unquestioned belief.
Yes, we all have a little in us, some of us more than others. The only antidote is to question beliefs before acting on them (avoiding someone or something because of prejudices is an action, as is avoiding books and science, and following the crowd or stereotype that gives you an artificial identity.)
“LIVE your stereotype!” That’s what I say. Just don’t be surprised that you’re stereotyped.