After O’Bama there is no citizenship requirement. Anyone on earth is eligible to run for US President. It is not a valid argument.
Congress has to change the birthright BS. It would take the USSC to return Constitutionality to the presidential citizenship eligibility rules. But I think it is too late for all that. I believer the time is very near to when the Constitution is declared to be void or to be advisory only by the administration which will not functionally change with the next phony election. Or it will just be overtly ignored along with the USSC or the Court will bee forcibly changed or disbanded.