In race no, in culture yes. An example of this would be the middle east. I know this is a foreign concept to a alot people but there was a time where the middle east was sectarian. As they embraced the islamic religion more and more. They're culture went backwards. This phenomenon is nothing new we can see can this in europe in the dark ages. This video by gavin when he was on the JRE (joe rogan experience) explains the finer points of what going in the middle east. But anyway race did not do what your about to see in the middle east, religion and culture did.