I’m confused. I don’t have statistics to prove it but anecdotal evidence would seem to indicate there is no shidduch crisis among chassidim who have an arranged marriage system, where almost always the bochur is older than the girl. Furthermore it is a very fast growing population. In short, this completely refutes NASI’s mistaken theory.
To the contrary their couples are usually far closer in age than ours, and this proves the NASI theory.