I get that, I really do.Its not that deep, some people like futas more than males, i do, and i only like women irl, with futas and females only you have all the sex possible that you would have with a male while not needing to look at a male.
But. Don't you want to be male yourself? I am under the misconception that you may or may not want to be a futa or female, so I'm only trying to go with the educated guess of this is going the route of you
playing as a male.
You can be male, shut off all the males.
Suddenly you are the only male, I assume this is the way you play yes?
Well... The problem here is, there are not very many males to choose from.
For you, the player character. Not to sex with.
What if you wanted to be a neko? Well... That's a bit of a problem, because there are no males for nekos.
It's like this for a lot of things.
TL;DR, the variety of males are limited. Male players are stuck to a small number they can be.