"Tinder seems to work better for gays, who don't have to overcome female restraint."
That one is hilarious.
The concept of "casual sex" could not possibly be symmetrical in terms of gender. How could people not to understand that ?
We are a mammalian species. The female carries the offspring during nine freaking months, and faces a tremendous physiological stress during delivery. Sex is never really "casual" for a female because in order to truly desire it, she must find an exceptionally attractive male, and those are rare by definition. The risk must be compensated by a good prospect for a smooth gestation and childbirth.