You’re looking at one scenario which doesn’t come up too frequently, and based on that you’ve decided that the way your country does it is better. Maybe you’re right.

Here’s a different scenario where I think the US does it better: when citizenship is only inherited, a person could be born in your country, live their whole lives knowing only your culture, and still not be considered a citizen because their parents were immigrants. Or worse, their grandparents were immigrants. That’s a homegrown underclass.

I don’t assume that the US has everything figured out, but there’s a reason a nation of immigrants values the rights of immigrants.