It’s not a poor analogy, age gappers are advocating unknown medicine for a questionable condition. We have no proof that the situation is any worse than its been in the past.
GIR, I’m pretty sure I answered already. If there are more apples than there were 20 years ago, does that also mean there is a crisis? You can discuss class sizes however much you like, but that doesn’t change the fact that it’s only one factor in the number of singles today, and no one has looked at the situation in its entirety.