Actually it’s worst in Asia. Gengish Khan Y chromosome mutation shows up in 2% of Asian population.
So this is how gene pool survival works.
Most of us will have very few to no descendants 1 thousand years from now.
Some of us will father the rest.
How to compute?
Well, each of your children is half your descendant. So if you have 2 children, you have 1 descendant in the next generation. That number may decrease or increase.
After 1 thousand years, it may actually go to 0.
Explain to me why.
Simple.
Let individuals decide how much they want to spend for their women (or men?) and children.
If a billionaire want to spend $100 million for 10 kids, it’s his right. If he wants to spend “only” $1 million or $100k for each kid, and produce 1000 kids instead, it’s also his right as long as the future mom also agree. Let the parents decide.
If government has a say it should be some minimal amount applicable equally to everyone or adjusted by kids’ need. Parents’ financial capability is irrelevant.