Wrong wrong wrong wrong. Humans are extremely tribal and viciously territorial to the extreme. To a human there is "my" people, my race, my religion, my sect, my language, my regional dialect, my clothing, my town, my nation, my football team ad nauseam. Everybody else's stuff is "their" stuff and even "bad" stuff or "wrong" stuff.
If you squarely face the reality of human nature you will realize that the survival reflex you call racism is quite normal. Now via culture some of us learn to be tolerant of those who are different (to a point) and some of us don't. Some cultures are more tolerant than others.
So yes, most people are born racists and I would take it that even racially tolerant people still like their own best inside. Being from the UK where the goal is to be politically correct to the point of national identity destruction I can see how your views might differ from mine. Over here in the colonies the recent situations are even really bringing out the racism is some of the more vocal black people. That is both expected and normal.