The decline in young people having children, the decline in immigation, and the decline in other countries opinion of the USA are undisputable facts.
I guess housing costs also have some impact?
Anyway, I've kept wondering when the concept of "illegal" immigrants started to be accepted -- all over the world.
In e.g. the US, wasn't every single non-indian person living there up until circa one century ago, "illegal" immigrants or descendants of those?
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