Sorry, your claim is BS unless you can prove that Obama actually did give up his US citizenship, or unless you can prove that he actually was naturalized as a citizen.
If you can prove either of the above - not just claim it's true, actually PROVE it - then you have a case. Otherwise, well, I hate to put it this way, but OTHERWISE, you're just another loon.
Another false narrative Obama supporters have successfully implemented is that natural born citizenship status is held in perpetuity; i.e., once born in the United States, then you are forever eligible to be POTUS.
If natural born citizenship status is held in perpetuity, then McCain is a natural born citizen of Panama and Ted Cruz is a natural born citizen of Canada. We know this isn’t true because Obama, Hillary and many other prominent Democrat Senators voted in Senate Resolution 511 to declare McCain a natural born citizen due to the citizenship status of his parents at his birth. Consequently, it proves the Democrat leadership believes natural born citizenship status is not held in perpetuity.