Then it's not a good joke since the U.S. president is the commander-in-chief of the U.S. Armed Forces, meaning that a U.S. president could absolutely commit genocide. And has done so many times with indigenous Americans.
Absolutely not true. Only for prolonged conflicts... which congress will almost definitely approve of by the time that happens because the military will already be too embedded.
I see, so essentially they would state that it was in defense of the United States because it is was onshore and is there's nothing Congress could do about it.
That's actually really horrifying if someone like trump takes the presidency given his current threats...