I think a lot of people are conflating prejudice with racism. I am going to pre-judge a black ghetto rat the same way I am going to do it to a white trash hillbilly red neck. Its not racism, its looking at the available information and playing the odds. Its certainly be possible to be prejudiced based on race, i.e. I want to have an Asian doctor and a Jewish accountant. And not all prejudice is inherently wrong, but really just a starting point for forming an opinion about someone in the absence of other information. If I see a middle eastern woman in a burka, I am going to make certain basic assumptions and modify my behavior to avoid offending this person and causing a bunch of issues. As I learn more about a person, that base template becomes modified.
This "treat everyone the same" stuff is basically victim culture. They are waiting for a reason to complain and its not even usually the aggrieved party but some concern troll SJW type looking to be offended on someone else's behalf. As a fat white nerd, people initially treat me a certain way based on past experiences they have with other fat white nerds. I am fine with that and its up to me if I want to demonstrate that I need to be treated differently than that. Same as when I see someone in a turtle neck with emo glasses and a starbucks coffee in their hand, I immediately identify that person as a hipster douchebag that I should avoid. Prejudice (the non racist/sexist kind) serves a valuable role in keeping a civil society.
Tribalism, actual hate of people simply because they are different (of which Racism is the most obvious form), has no value and needs to be quashed.
