It's a matter for Scotus, it if goes down to that, and methinks they will go with the accepted tradition in America, which is to grant anyone citizenship if they are born in America unless they are the children of diplomats.
You raise an interesting point and that is "citizenship of a state".
Article IV, Section 2 of the Constitution of the United States of America states
The citizens of each state shall be entitled to all privileges and immunities of citizens in the several states.
and that carries the clear meaning that a person CAN be a "citizen" of a "state". Since the Constitution of the United States of America does NOT deal with how a person BECOMES a "citizen" of a "state" and since the 10th Amendment to the Constitution of the United States of America states
The powers not delegated to the United States by the Constitution, nor prohibited by it to the states, are reserved to the states respectively, or to the people.
that means that each of the several states has the constitutional right, and legal capacity, to establish their own laws as to how a person becomes a citizen of that state, and since the 14th Amendment includes
... are citizens of the United States and of the state wherein they reside
the concept of "state citizenship" is even more firmly established.
Taken to its extremes, a state could (theoretically) limit "state citizenship" to "White, Christian, Males owning, free and clear of all encumbrances, real property to the aggregate value of $1,000,000". That, of course, would have no effect on whether someone who did NOT qualify for "state citizenship" qualified for "American citizenship".
However, if a state (again theoretically) limited "state citizenship" to "anyone who wanted to claim citizenship in the state of __
[fill in the blank]__" then an arguable case could be made that that, automatically, qualified that person for "American citizenship" because they would be a "federal citizen" due to the fact that they were a "state citizen".
Of such thoughts are great legal bills made.