>>In a Darwinist situation , the group with the most reproductive success takes over.<<
That is of course my point. (Some people just can't seem to get past their limited view of the world.)
Most western European countries (and Japan) are not above replacement rate. Muslim countries are waaaaaay above replacement rate and when European countries need people to work to fund their welfare states, Muslims will fill the gap and unless something changes, will take over.
One solution would be to remove from sex the stigma of sin here in puritan America.
Sex, we could amend, is clearly essential to our survival, not only in continuing a perpetuitous species replacement, but also to win a puppy producing pissing contest with the heathen Muslims, and therefore, while constricted previously to our homes and cars, we should now then copulate with abandon, and often, everywhere.
You have the truth, brother: there are not enough people encrusting the planet.
Besides, more workers make better, cheaper workers, and most importantly, more consumers for the corporations.