Their argument is that the "plain letter of the United States Constitution" doesn't say that explicitly: https://en.m.wikipedia.org/wiki/Birthright_citizenship_in_th...
Plenty of examples where birthright citizenship didn't apply in the past (and currently don't apply, such as American Samoa
No, it says this explicitly:
All persons born or naturalized in the United States, and subject to the jurisdiction thereof, are citizens of the United States and of the State wherein they reside.
They're arguing that the sky is blue, which the sky actually is.
>If they win a court case by arguing the sky is green, that says something about the court, not about the reality.
If they win a court case by arguing the sky is blue, and half of the political establishment rejects that, that says something about that half of the political establishment, not about the reality.
All persons born or naturalized in the United States, and subject to the jurisdiction thereof, are citizens of the United States and of the State wherein they reside.