Why is it Americans are so ill-informed and generally so internationally stupid?

Much, if NOT all, of the difficulties faced by Democratic regimes have been caused by xenophobic Republicans, reference Dumbass and the First ***** in the White House 2017-2021, generally the stupidest people in American politics! The only people stupider are their supporters! Now we have the prospect of the lunatic American voters in a country touting democracy when it is NOT (the United **** holes for Assholes [USA] is {always has been} an oligarchy) possibly electing a convicted criminal to their Presidency? Make no mistake the incoherent, incompetent Dumbass (Trump) is more mob boss than politician?