It is ironic that the sundry anti-Trump propagandas, which were intended to sway conservatives and moderates, seem to only have had effect on the precalculated political integers, whose loyalty was already absolute. But this effect exacerbated prodigiously the perceptual gap between the hard Left and most of America. There exist two radically different world views, which are equally radically incompatible.
What point is there in engaging in dialogue with someone who is a white supremacist, or, on the other hand, with anyone stupid enough to believe such lies?
Cultural divide? 100% the fault of the Left and its organs.