By your calculation, then, King George III of England was founder of the USA, even as the king was simultaneously warring against the rebellious states.
Under your illogic, why did you leave out King George Bush II of America, who destroyed Iraq and dispersed its army, leaving a power vacuum that ISIS easily filled with an army of non-soldiers who had only Toyota pickups and Kalashnikovs?

Trump is a motor-mouth, and most of what he said during his campaign makes no sense in the light of reality.  You should accept that fact.