Many of our pundit class misunderstood the Trump phenomenon - and that confusion continues, at least for those who buy into Matt Latimer's "What If Trump Had Won As a Democrat". Asking that question misses the point - that Trump won as a Republican by taking tried and proven Republican campaign tactics to their logical extreme conclusion. Personal attacks carried to extreme, irrational levels of viciousness. Attacks on the press, including threatening speech aimed at individual reporters at rallies. And lying as a tactic some of the time taken to the extreme of lying with abandon.
Now Latimer's piece may well be a parody, but serves at least a deflection for Republicans who like their party electoral strategy just fine, thank you, and do not see any need for reform, other than to regard Trump as an aberration instead of the epitome that he is.
Jonathan Chait takes down the Latimer arguments, such as they are, in "Could Trump Have Been Elected As a Democrat?" which is accompanied by a fitting photo that implies an equally 'interesting' thought experiment, "could Palin have been selected for VP as a Democrat?":
Chait writes, "Trump is a product of a decades-long evolution in the Republican Party." And he closes with "Trump is an historical outlier. But he is also the product of the political culture of a Republican Party that is fertile soil for his brand of authoritarian ethno-nationalism. The desire to regard him as a fluke who could just as easily have wound up in the other party is the kind of evasion that has prevented many Republican elites from squaring up to the forces that enabled Trump’s rise."
Unfortunately, those who do not understand their own party history are poorly positioned to make a course correction, let alone reverse course.