> Worldwide, the United States is home to more international migrants than any other country, and more than the next four countries—Germany, Saudi Arabia, Russia, and the United Kingdom—combined

That's a somewhat misleading way of presenting data.

It is true that in absolute terms, the US contains more immigrants than any other country on earth.

However, on a percentage of the population basis, the US is actually only around the OECD average in terms of numbers of immigrants: https://www.oecd.org/en/data/indicators/foreign-born-populat... – in 2019, Luxembourg was 47.30% foreign-born, Australia 29.90%, Switzerland 29.70%, Israel 21.20%, Sweden 19.50%. At 13.60%, the US was around the middle.

The fact that the US comes first in absolute terms, is not because the US is unusually welcoming to immigrants, it is because (among developed countries) it is unusually populous – at 333 million people, it is over 2.5 times more populous than the 2nd most populous OECD member (Japan).