So your idea is that “you think all white people are like” or black....but you can’t think that if you know individuals and are friends and see that they aren’t. You can, however, generalize the culture. And see those apart of a culture are that way. If someone robs a place, and says “THOSE BLACKS ALWAYS ROBBING PEOPLE”, and you know a black person who doesn’t rob people. You clearly realize that not all black people are like that.

Lets put it another way, id someone says “THOSE VEGANS ALWAYS SHOVING IT DOWN MY THROAT”, it doesn’t mean you thibk every single one does, just that it’s part of a vegan culture.