To bet your country's demographic future on "often have" is a bold move.
It depends. After WW2, USSR seems to have recovered its numbers (until late soviet birth rate and life expectancy slow dive). Germany never actually recovered, it seems to me - their population numbers are flat for decades and they're bringing a lot of immigrants in. France, I don't know - I guess they sidestepped this issue by repatriating people fleeing from ex-colonies.
It depends. After WW2, USSR seems to have recovered its numbers (until late soviet birth rate and life expectancy slow dive). Germany never actually recovered, it seems to me - their population numbers are flat for decades and they're bringing a lot of immigrants in. France, I don't know - I guess they sidestepped this issue by repatriating people fleeing from ex-colonies.