If there weren’t more girls than boys, some would have to, or remain single for extra years. Yet, I don’t think there’s a problem that older boys aren’t married because they can’t find girls with a good financial situation to go out with.
Gavra, first of all, without a job or parental support, less isn’t the issue, the issue is paying basic bills. Harbeh asu? Maybe, Hashem can certainly do anything, but ein somchin al haneis.
As you yourself pointed out, the boys are unable to get married without support. As such, the poor girls aren’t getting married to those sorts of guys, as they guys can wait yet another year for the new crop of girls out of brainwashing, I mean seminary.
Also, what does FD stand for?