I can't remember his exact reasoning re: the female wall myth, but I believe it's as simple as the fact that his lived experience is that high SMV females still do well finding partners into their 30s and 40s.

I find this somewhat ironic, as his personal narrative wrt his own situation goes something like "I'm in my late 30s, never had success in my career, slept with hundreds of women, was shredded but am less so now, am supremely confident and am a master at understanding female psychology. And yet civilization is collapsing and despite my newfound YT wealth, it's too late for me bros."

I don't even get the sense that he's worried that he's getting old to start a family.