Let’s say we added more chairs. Do you think the girls wouldn’t eventually notice and take a seat? (Of course the dynamics of shidduchim are different, but I’m illustrating a point).
What you are essentially agreeing to, if I understand you correctly, is that there can be no solution to the problem if the numbers aren’t addressed, but you maintain that fixing the numbers won’t help unless people’s priorities are changed
Here’s where I disagree. First of all, the vast majority of boys do marry within a relatively short time of starting to pursue shidduchim (maybe AZ has numbers), suggesting that pickiness is not the main issue. Secondly, I don’t think that the girls who don’t date often are completely undesirable to boys; it’s all relative. If there weren’t a “surplus” of girls, boys couldn’t afford to be as choosy.
You granted my assertion that hearing aids would just shift the lack of success in musical chairs to other players. There would still be 10% who couldn’t find seats, though. Think about it: if, as you assert, the numbers were always the same, that means that there must have always been a shidduch crisis of at least 10%.