What Defines Race?

Racial differences you could argue are that people of African descend and Caucasians are fundamentally different and separated by their cultures. However, biologically there are no real differences between the two races; the most different thing about both is where they are brought up. Race isn't something used for biological purposes, it's almost always used for social purposes. Race is a man made thing, it exists in the mind. It is not biological, because the genes that give you certain traits are independent, if they controlled skin color, then it would be race as biological. We haven't had enough time to evolve and customize through evolution. Clearly that's all that race and skin color is though. Race is an evolution. People in Asia have slanted eyes because they live in the snowy regions or the bright sun, it helps them to see, this is a biological adaptation. Europeans could be shorter depending on where they come from because they lived in the mountains. People from Africa have darker skin, that's to protect themselves from the sun. Race shouldn't be judged as a bad thing, it should exists as it is a achievement that man changed itself to be able to live in all climates all over the world.