If I may speak the platitudes a little, I think people are more similar than different. Racists don’t really recognize this due to a variety of cognitive biases, and the tendency towards tribalism. Not long ago it was not even allowed to intermarry between “races” in America. We really behave like dogs, except I think there is much less variety between races than between dog breeds!
Often people who have no traveled ascribe large differences to other countries, treating them like they are a totally different species rather than just another breed raised in another environment. Our core desires are more similar than different, it’s a grand illusion, and lately I’ve realized that we generally all laugh at the same jokes.
When I say this I mean country to country comparisons. Variations of person to person differences within a country are much bigger than country to country comparions where we regress to the mean.