That is to say, Donald Trump purposefully injects 'crude, dehumanizing, and racist language' into the political discourse on immigration

Trump’s Immigration Remarks Outrage Many, but Others Quietly Agree. (The New York Times, 1/12/2018)

Other 'shithole countries' posts:
Donald Trump: (a) Nativist, (b) racist, (c) ignoramus, (d) all of the preceding.  (1/14/2018) 
Jeff Sessions's unqualified praise for first draft of official ideology of Nazi Germany.  (1/14/2018)
As you might expect, Trump likes the orange countries of the world.  (1/13/2018)

Donald Trump sycophants and possible meeting crashers issue joint statement.  (1/13/2018)

"You just tell then and they believe you". The shithole edition.  (1/13/2018)