This is undeniable, and it also means that the future of the US, to the extent it has one, is sectarian not multicultural. In other words the American future is not Brazil, but Lebanon, only with nukes and 57 times more people across a continent-sized space. Europe before the Peace of Westphalia.

The Great Cull in favor of the people with grandkids will take another 40 to 60 years to play out. I won't be around to remind everybody of how right I was, so good luck.