Why was it that the states who voted the most for trump were also the ones where you can marry your cousin?

You might be on to something here...  

The states voting for Biden want boys to be girls and vice versa.

.....and the ones with the most people whose eyes are too close together.

What's wrong with marrying your relatives?

Roll Tide!

It's almost like inbred Traitors loved the idea of a racist, full-throated fascist demagogue supporting them by giving them tippy top nods to their childish meme culture.

Because they want to produce more Democrat voters.