You are probably right.Lawyer makes Kurt Schlichter the point that we will likely lose the Birthright Citizenship case on procedural grounds, and this is just starting the fight.
Don’t Freak Out When We Lose the Birthright Citizenship Case
So our first option is try to pass some laws via congress that can define "under the jurisdiction thereof" and clarify the situation, and the 2nd longer option is an amendment removing it.
This SCOTUS is Constitutionally retarded.