Yeah, sex was definitely a commodity back in the day. It probably still is now, but with all the emphasis on equality between the sexes a lot of us don't want to admit that there's a supply-demand dynamic at work here (
baumeister talks about this in greater detail).
So since their material well-being depended upon it, women had to make sure that marriage was an air-tight institution.
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I'm sorry but that first link you posted is one of the most misogynistic things I have ever read??!
"How to get a girl to send nudes if herself"
"Alpha male of the month"
"Was the sexual and feminist revolution formented by undersexed beta males"
"Alpha male cock hopping"

"but the grand bargain did not work out as intended for the masses of beta males who acquiesced to the new girl order. while alpha males certainly saw more action from "liberated" women, the average joe did not. instead, all the average joe got in return for sacrificing his workplace status in hopes of easier sex was... a heaping helping of humiliation and wage stagnation and anti-joe animus, which continues at an accelerated pace to this day."
"All over the world and throughout history (and prehistory), the contribution of large groups of women to cultural progress has been vanishingly small. "
"We speculate that today’s young men may be exceptionally ill prepared for a lifetime of sexual starvation that is the lot of many modern husbands. The traditional view that a wife should sexually satisfy her husband regardless of her own lack of desire has been eroded if not demolished by feminist ideology that has encouraged wives to expect husbands to wait patiently until the wife actually desires sex, with the result that marriage is a prolonged episode of sexual starvation for the husband. [...] Today’s young men spend their young adulthood having abundant sex with multiple partners, and that seems to us to be an exceptionally poor preparation for a lifetime of sexual starvation."
Hmm forcing anyone to have sex when they dont want to is RAPE, even if you're married to them.
Choosing hookup culture because you think marriage is going to be sexual starvation is just lazy.
"Toss into a social salad bowl already brimming with an influx of non-European immigrants thanks to the 1965 soft genocide act, mix thoroughly, and voila!: a huge, inexorable, relentless leftward shift in American politics, an explosion of single moms, wage stagnation, government growth, upper class childlessness, lower class dysgenics, and a creaking, slow deterioration in the foundational vigor of the nation and the gutting of the pride of her people."
Arghh!
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Anyway, regarding hookup culture. There is definitely a supply-demand dynamic, but I think it's based on attractiveness more than gender.