If I understand correctly, you're proposing sex-selection (terminating males?) as a hack to theoretically produce more child-bearing women in the next generation, who would, I assume, just reproduce promiscuously or form polygamous relationships?

I have to admit, it's an outside-the-box idea, but it would still take 25 years to start bearing fruit (no pun intended).

> culturally

Yeah, honestly, especially in Asia where they de facto did the opposite for so long, all those "extra" males seem to mostly just be alone. I'd worry that the generation with way too many women would reproduce at a disappointing per-woman rate, with the women choosing to roll the dice and either land a monogamous husband to maybe have kids with, or to just pursue their career, rather than be a 'side-piece mom.'