not to be nit picky, but you write “If all men marry women 3 years younger, and frum population growth is more than 2% per year (probably this number is too low b”h), this more than offsets the maximum ratio of 105 men: 100 women.”
“(probably this number is too low b”h), more than offsets the problem” doesn’t express the seriousness of the problem.
However, if we all understand the problem I’m good. Unfortunately our good friend joseph seems to disagree.