I am in Mod 80’s boat and agree with him entirely. Unless there is not a single person of the opposite gender (within a reasonable age range) looking to get married, it IS ALWAYS possible to get married. (Barring very very exceptional circumstances i.e. a major health issue).
And that is always the case.
And, absolutely, a life of singlehood is immeasurably worse than a marriage to someone less than your “ideal” partner. To claim there isn’t a single qualified candidate to marry is completely preposterous.