I think it's perfectly possible to follow your comment 100% and still expect "payment" to happen. In what sense is it a problem for the "us" group if society is doomed because the "us" group gets the short end of the stick compared to the "elders" group? You seem to be calling the "us" group entitled, but that's a matter of perspective. The "elders" group can perfectly well be called entitled if they don't want to chip in for continued survival.

Sounds to me like "us" and "elders" should get round the table and figure out a way to make having children more palatable.