This post is a week late to the party, but I haven’t seen this point made explicitly: Trump’s “shit-hole” comment egregiously conflates within-group and between-group differences.
Since February 1999, I’ve had a web page about fallacies. Rather than regurgitating all of the usual ones that one can find elaborated in critical thinking textbooks, I collect fallacies which an author names for just one occasion. These one-offs don’t appear on the usual lists. Authors usually do this to condemn some specific target, one who has committed not some generic error in reasoning but the specific if newly-named fallacy of such-and-so.
Prompted by John Holbo at Crooked Timber, I’ve added three new specimens. One is coined tongue-in-cheek by Holbo himself to mock a book review by David Bentley Hart, and the other two are coined by Hart in his would-be hatchet job on Daniel Dennett’s book From Bacteria to Bach and Back.