That is true, we could be doing a lot to provide a better starting point for our following generation besides just making them a bigger generation.
Will that happen? I don’t think so…
But I also agree with you here, so I resorted to argue for a somewhat realistic scenario.
Also it does not contradict my point of it being better to spread out your own weight on more shoulders, rather than few. That would still be valid if we did change our productivity towards more socially beneficial projects.