as a top 1% male - this is absolutely correct and why i take the redpill manosphere perspective seriously now that im married
Let me break this down. Hookup culture generates negative affective consequences for women at disproportionate rates (higher regret, lower sexual satisfaction, higher post-encounter anxiety). It generates a specific positive consequence for men: the men receiving any actual "benefit" is an exclusive upper tier. The vast majority of men receive nothing. Dating apps have caused a winner-take-all market that is so imbalanced, with the top 10-15% of men cycling through 80-90% of the available women, and the median man receiving zero pussy. This is not a market that benefits men; this is a market that benefits attractive men at the expense of virtually everyone else. Most men too.
More accurately, what she's trying to say is: "hookup culture benefits high SMV men and hurts everyone else, most of the men as well as most women, though in different ways". The cost to women is the emotional cost; the cost to lower-tier men is the scarcity cost; the cost to women, high-tier men, and low-tier men is that those women are in many cases providing positive reinforcement to men for behaviors they would otherwise lack the incentive to engage in without female validation - though you're right to point out it benefits the specific men she's actually fucking more than anything else.
The reason she gets away with "men benefit" framing is that it's more satisfying. It gets engagement. It takes a market issue and recasts it as a gender grievance and can be maintained even when the data shows her interests aren't even well-served because the alternative is a much harder lesson: I participated in something for a long time that wasn't in my interest either.
Most people just can't swallow that.