Hypothesis

I wish there were a word that meant "educated racism" the way hypothesis means "educational guess". Hyporacism doesn't work. It's got to mean more than generalization because I want it to be negative the way racism is. I'm sure ESL teachers all over the world know what I'm talking about. We know not ALL of a group is the same but many of them share negative (to us) characteristics that are simply undeniable. It's not the same as racism, which often happens because of ignorance and limited exposure. This is educated racism, which happens in learning environments through concentrated exposure. Let's try to think of a good word