To me that kind of logic doesn’t fly and is your statement one of ignorance.

For instance, I’m asexual, in that I’m really not interested in sex, nor in procreation. The whole idea of sex (and I have had sex in the past) makes me physically feel disgusting and disgusted. You would probably call that a mental disorder too then. But it isn’t.

It’s still just a part of the human experience. My brain is as biologically normal as yours. We all just experience the world in different ways.