Much closer to the truth is this .... racism is rampant world-wide, and it is significantly - seriously --- absolutely --- worse than here in the US. We are sensitized to it, but the "racism" we hear about so much here would be nirvana for the oppressed of other countries.
But, then, we all need to be victims, don't we?
Agreed that the US is better than other parts of the world.
IMHO, "racism" is a culturally-enhanced form of a genetic predisposition toward xenophobia.
In primitive cultures, survival of the tribe required many talents. Suspicion of strange things was one of them since "strange" things presented more hazards than benefits. 200,000 years of Homo Sapien Sapien evolution can't be negated by a few hundred years of "civilization".
So Looking at that aspect of it, I wonder if being territorial could also have a huge part in racism. If you are a member of a "tribe" or group that has claimed a certain area of land as yours, you would notice if someone that didnt "look" like you and your group appeared in your domain, and depending on how it went, its possible that fighting could occur.
Being "territorial" can also be seen as competing for resources. All wars are over resources be it geographical or access to. They can be justified for many reasons, but the bottom line will always be for control over resources. As such, being territorial becomes a natural survival trait. Being able to control one's own water and food supplies along with defense against aggressors are desires hard-wired into our minds.
True. There are many hardwired traits in humans that we consider less than desirable today. I do wonder however if the process of evolution will get rid of some of these traits in time. Like you mentioned, protection of resources is something that we are genetically wired for. Same with men that cheat on their wife, or the fact that women will most of the time go for the guy with the flashy car, nice clothing, big house,, or simply put, money, and physical make-up. in mans early years, (as in evolution not age) the man would try to breed as many women as he could in order to help ensure the success of the race. Women would pick a man to breed with that could protect her and her children while still being able to provide for them. The way its played has changed over time, but the game is pretty much the same. These are traits that can be found in most animals today, deer fight to be the buck in charge of the herd, most animals that are community based will have some way to pick the strongest of the group to be the leader.
Look at something as simple as a corporation today, you will find that the majority of those at the top of the company are usually taller than average men, The better looking people have a better chance at advancement.
Most of the U.S presidents have all been over 6ft, except I think Madison, I think he was like 4 ft or something? ( he must have been rich to start with)