I think your last point is absolutely the central paradox of global society. The goal seems pretty clear: brutual transnational neofeudal capitalism with a happy, politically correct face becomes the default universal position that defines the dynamics which subcommunities allowed within that framework interact - eventually, the whole planet becomes California.
Minus the California quip, I don't totally disagree. Globalism as implemented is turning out very different from what anyone hoped.
Returning to the sexuality issue, I do think there's more than one thing at work here. I think the narrowing of male sexual options has multiple causes: economic strain, easier "shopping" when dating, easy access to porn that distorts peoples' ideas of what sex is actually like, and men growing up under-socialized.
I see the latter a lot in the incel phenomenon. I literally saw a comment once to the effect that "real women are nothing like they are in Anime." So these guys are disappointed that women are not like cartoons. That's insane.
Also didn't mean to suggest that narrowing of dating is "womens' fault" any more than the triumph of Amazon in the shopping space is the "fault" of consumers. What we're seeing here are emergent behaviors in a complex system. Nobody planned this and nobody is really even choosing it. I don't shop at Amazon because I want them to be the CHOAM company from Dune. I shop at Amazon because its convenient.