The election of the Kenyan Muslim Socialist to the position of emperor definitely cracked upon the racism box which had been very slowly closing over the past few decades. Not saying that until Obummer everything was perfect, just overall the trends were going in the right direction and in an increasing number of contexts it just was no longer ok to be an obvious racist. And now Trumpf has blown it wide open, bringing us back to 30 years ago.
Heckuva job.