Europe has a better social safety network and wants people to have more kids.
(Personally, I don’t think high birth rates are a good thing. The long term survival of our species depends on curtailing global population. But that’s a different subject.)
Clearly parental support is not directly correlated with high birth rates.
That doesn't seem to be the case. The last 60 years saw plenty of anti family propaganda (same like in the US) and the numbers confirm that trend.
The only people keeping the number of kids per family high are immigrants from Africa / Middle East who haven't been indoctrinated for 60 years.
I'll give you a hint - it's quite a lot less than the number of Mormons in the US. Who are a group significantly whiter than the US general population, and with higher birth rates to boot.