AZ-
You seem to feel pretty strongly that the crisis can be solved by eliminating the gap. In my opinion we have to look at what is causing the gap.
I know you didn’t like this the last time I mentioned it but I’ll mention it again and I’m willing to have a dialogue with you provided that you keep it diplomatic.
It is much easier for a girl to be “good” than for a guy to be “good”. You want to know who the “not good guys” are marrying since they seem to be getting married? Maybe they are marrying younger girls who are more forgiving and naive.
One girl I went out with insisted that I commit to learning in Kollel full time for three years before going out again (after all that’s what many of her friends got). I definitely hoped to and had plans to (and eventually did) but I didn’t know the future and refused to sign. Six months later we were both single but the next round of girls were home from seminary and many eligible bochurim got married. My selection pool was much larger while hers got smaller.
Had she been right out of seminary she might have been more understanding when I said that I wanted to learn as long as possible, but she already saw that many of her friends had husbands who were learning for a few years and refused to settle for anything less than that for herself.
I’m not saying I know what the solution is but I think the first step in finding the solution is to get at the root(s) of the problem.