DaasYochid: If there was a shidduch crisis, the birthrate would be falling. That’s because among frum people, shidduchim correlate with getting married which correlates with having babies (frei Jews and goyim have different minhagim, but that’s irrelveant to our discussion here). Within a few years of such a crisis, the schools would have trouble finding students since the major determinant of how many children arrive at our schools is how many babies were born several years before.
Thus I am skeptical that there truely is a “shidduch” crisis, beyond the one that every single person has until they get engaged.