well USA always bid on several parties, USA vs URSS was very clear, but being a bit conspiranoic the 3 facts you mention could be in order; but USA doesnt work as singular country and have several parties working; republicans could be taken as collectivists in a way, but they are closest to nationalism and liberalism in political ideology; Democrats since the civil war tend to go to the left now having true socialist marxist among the ranks... Obama was accussed of being communist, and maybe he does in the gramcian side, but i cannot call trump communist since he is on the other side.
we cannot fall into ISM by declaring communist some people that make social policies in a country that tend to the other side.