Birthright citizenship may be settled, but the citizen is not the one being deported, the mother is. If the mother has custody of the child and opts to bring the child with them…I doubt you can find any settled case law that establishes that a parent cannot be deported because of the citizenship status of the child….whether a child is minor or not a minor.

Perhaps I need to read it again, but nowhere do I recall reading that the citizenship of the child is being revoked, so this isn’t really challenging birthright citizenship, it’s more about challenging the notion of an anchor baby passing legal residency status to a parent.