> The average single man (emphasis added) paying attention to contemporary social fashions will struggle to understand the new rules of meeting, courting, or having sex with women. Something as banal as trying to converse with a woman wearing headphones is now often considered harassment. A man’s chances of mating success increase when he approaches many women, but so too do his chances of a gaining reputation as sexist, exploitative, or immoral. To take a fraught example, how does a man know that a woman is genuinely consenting to sex? A lack of ability to pick up on cues can incur catastrophic costs.

I don't buy this. Social norms are a product of the group to which the apply. In this passage, that group is "all single people". For argument's sake, lets say heterosexual men make up 40% of that group. The author's claiming that a typical member of that subgroup will not understand the rules? This seems like an extraordinary claim, and I'd really need to see evidence of such a thing happening any time in the past to believe it is plausible.