Do you guys think "innate racism" is a thing? As in everybody is born a little racist?
If we were to have a city of 500,000 people that were all born into and around different races, and everyone had the same culture, religion, and the only main differing value was politics, what would the race relations be like? Lets assume everyone in this city has never been told anything about racism, or the history of violence between any races. Lets say this hypothetical city called "utopia" or some shit like that has every human ethnicity on the planet right now that you can think of.
I actually wonder how such a implausible scenario would play out in reality.
I learned in Etology that humans used to be tribal animals who lived in tribes of few hundreds. That's why you don't like it when strangers sit within a few meters of you, your instincts tell you its wrong.
This biological tension is also responsible for racism and even when two white towns rivalise with each other, or two black ethnicities dislike each other.
A lot of human biology has failed to adapt to our technologically advanced lifestyle.
But on your theory, I think there are a lot of factors:
-Biological tension. They look different.
-Historical tension. They enslaved us.
-Political tension. They vote for Crooked turd or douche.
-Economical tension. They are richer or poorer than us.
-Cultural tension. Their culture does not want women to drive.
-Religious tension. Their gods don't like our gods.
These all add up and there is no definitive cause, its an aglomeration of all the factors. The more factors you remove, the less trouble there will be. The biological part of course can not be removed.
Modern multiculturalism allows for different cultures and religions which cause more friction than other societies.
Theoretically, so if there was a nation with no historical records of black slavery, no big vague gap between rich and poor, one political party, one culture, and one religion, it would do better. I'm just not sure how much that better would be.