futa is gayer than male on male because it is a trans. It is a dude who got tits. If you are jerking off to futa you are jerking off to cock and jerking off to cock is gay.
...You DO know it is possible for someone to actually be born with both, right?
How is it "gayer"? at least with a futa you get tits and sometimes even vagina, whereas actual gay porn is just cocks. Also, wouldn't it be more accurate to say a futa is a girl who loved her strap-on so much she decided to get a real one? On the rare occasions I've seen futas they tend to be characters we'd normally consider female.
It's really only "gay" if you're more attracted by the cock than the tits or pussy. And even then you're just bi if you still jerk off to the T&A(&V) as well.