Trump's appeal to racists, anti-semites, xenophobes, homophobes, etc. is all a means to an end: keeping Trump in power. He's taken Nixon's "southern strategy" to the next level by bringing it all out in the open. Everyone who voted for Trump is guilty of his sins by association. Everyone who serves on his staff or on his cabinet is guilty by association. Everyone who defends him now is guilty by association. The only moral, ethical thing to do at this point is stern denunciation of Donald Trump and everything for which he stands. At this point there is no other moral way out. Period. The end.