There was a recent American Ninja Warrior with a contestant who had something like 8 siblings and his parents were both from large families. The guy had 119 FIRST cousins. They all looked VERY “Scandinavian”. When we were young in the 60s we were told “responsible people” only have two kids. Now I’m sorry. I shoulda had 15.
I only have five, but my best friend at Ft Hood has 18, yes 18, that is not a typo. Most of the rest of my friends in that circle have five - seven.
But again, they do not do anything to get the press interested in them, go quietly along getting jobs, getting married, having more kids, and making a very solid core in the USA.