“If a law is is unconstitutional it should not be passed period.”
Passing a law that says someone born of an illegal in the US is not a US citizen is NOT unconstitutional! The Constitution says they must be under the jurisdiction of the US...so what does that mean? From what I’ve read, the court cases are ambiguous.
A state law could force clarity by forcing a court to consider the question. Unfortunately, I think reality is that A) no state - certainly not Arizona, not right now - will pass such a law, and B) a court would try to sidestep the issue by saying a state has no jurisdiction.
As I said, a state could deport the mother without regard for the child, although I suspect there are enough liberals on the SCOTUS to rule THAT is unconstitutional.