Race as a social construction

Today in my class about the Underground Railroad, it really hit me how much visibility plays into the idea of race as a social construction. We were learning about slaves who escaped south, to Mexico. Along the way, some of them chose to become part of Native American communities, intermarrying, and producing children. I think this is another example of how races have been infinitely mixed, so much so that a "pure" race no longer exists. (Ironic as those who see themselves as pure have tried to drive others extinct, when they themselves are now extinct). If we all had the same skin color, it would be impossible to see where we are from, what language we speak, or what religion we follow. Our society is completely reliant on what is visible.