Do you know a significant percentage of heterosexual men who WANT anonymous sex?
I do not. They may want sex, but the vast majority want it with someone they know. I’ve never heard of heterosexual men having sex thru a hole in the wall - unlike homosexual men.
There is a reason why most men have not had 500-1000 sex partners, and it isn’t because women are too picky.
If this were true, there would be no female prostitutes.