Why can't people just see people as people?

Why does it have to be a label first? Aren't we all just trying to make our own way? I am interested in the responses from people who are phobic, racist. ist or any other kind of bigotry, I want to know why you cant. won't or don't. I'd rather not have the ranting abusive stuff, I want to know where you're coming from. I don't want to be confrontational, genuinely want to know why?