Zero has always been UNqualified to be POTUS. He may be DISqualified too, but at this point it is academic. The only way to get him out of Air Force One is to vote him out next year.
Sadly, U.S. citizenship is handed out indiscriminately, like a prize in a Cracker Jack box. It is one of the signs of Empire, like Roman citizenship.
We now have millions of people running around with “dual” citizenships. If you are well connected and have enough money you can potentially be a “citizen” of a dozen countries at the same time. For example, you can buy one from Belize or claim one from Ireland if a grandparent was from there.
He would be OUT now, if respectable honest lawmakers with guts had done their JOB!