I don't think you can disable futa, I know you can make all males into FUTA, but I don't think you can disable futa, but i haven't looked for that so I may be wrong.
I turned off Futa for the bees in the menu (I also thought it was impossible!) And all the bees in
Hivelands became females. But I haven't checked if the quest requirements will change.
Edit:
What if we disabled futa?
I checked what will happen with the
Autumn quest if you play as a female breeder (v0.752.4 Alpha):
* If Futa is on the menu,
Autumn asks for Futa Bee.
* If Futa is off in the menu,
Autumn asks for a Female Bee.
Apart from gender, all other required characteristics are the same.
Actually,
erw, you could try "What if we disabled futa?" making a save before that.