My money is on the Swiss.
They didn't cave in the 60's and there was INTENSE pressure to do so. They don't need to cave. They have their requisite 1.5 children to keep the numbers of Swiss normal.
I was friends with an Englishwoman who married a Swiss man and they had TWO children, both girls. They did their Swiss duty and brought in a bit of new blood, ENGISH blood.
My friend was a blue-eyed (dark blue) blonde, very pretty, smart and VERY, VERY nice.
“They have their requisite 1.5 children to keep the numbers of Swiss normal.”
1.5? The replacement rate is above 2. A fertility rate of 1.5 is a demographic death spiral.