Would it be okay if theres an option if I can disable men so I can just have futa and women?

If if don't remeber wrong, you can chose what matches you want to have (With just girls, futa, or men. I think you can choose only one option but you can change it any time) available after getting more famous.  Hope it helps and my english was understandeable.

IIRC theres no randomly generated male characters, so if you don't create a male character then its effectively disabled.