I have always thought the AF/BB was the most interesting theory proposed by TRP/manosphere, mainly because I do believe there is some truth to it.

However, I don't believe that it's as applicable these days as it was, say, 5-10 years ago. I think the dating climate and our culture is changing. People are more unapologetically seeking what they want and completely ignoring what doesn't add a net positive in their lives, regardless of what's deemed socially or traditionally acceptable.

I can see many women who will have sex with sexually desirable men until their 40s or so and then settle into a platonic life partnership with another like-minded woman or simply just live alone or among friends and family members.

I think women, especially educated women with decent careers, will have less of an incentive to settle for an unhappy or possibly sexless marriage with a "beta bucks". If they want children, they have the options of sperm donation or adoption. There is less of a stigma these days surrounding either (adoption in particular is seen as a noble act).

My generation in particular (20s) has many single people in it, both men and women. I highly doubt the chronically single ones will settle down any time soon. Many of the people I know who are single (mid 20s) haven't dated much in the past few years and do not see a long term partnership/marriage as a goal. A lot more women these days are childfree, as well, because they realize they can't have it all (career, marriage, children) without sacrificing their comfort and well-being along the way. The 90s myth of the high-powered career woman who is also miraculously able to do the majority of the housework, childcare, food prep, etc, is fading rapidly.

Less sexually desirable men on the other hand will likely continue trying for marriage and children up until a certain age, and if not successful finding a suitable woman, they too will settle for occasional casual sex or short-term partnerships with women. I can sense there's also a lot of pent-up frustration from "beta" types, so it would make sense that they may become turned off by the whole idea of dating unfortunately, especially if they haven't been on the benefiting end of hookup culture.

In general, I think long-term casual sex, some forms of polyamory, or short-term relationships will start becoming more common among more liberal-minded folks in my generation as we get older. Then after sexual desirability has faded, people will go their own way. Fewer people will opt for marriage unless they want a traditional family with children (which has increasingly become less popular among my age group). I do believe this will be in stark contrast to the generations older than us, who did see marriage and children as a long-term goal. Therefore, a lot of rules that applied there will not apply to us.