The Democrats, even if they have a liberal wing( Deaniacs), also has a centrist pro business wing(DLC). The communist party detests both as tools of the bourgeoisie...left wing props of capitalism to coopt the real left.
Absolutely,
And as much fun as it is to call Democrats Communists, (I do it myself sometimes) there is a huge difference between Democratic Socialism (wich is what the left side of the Democratic Party practices) and Communism which advocates the elimination of private property.