One other thing to factor in: the GOPe brazenly sabotaged the GOTV effort for Trump. I doubt we would be discussing the "he lost the popular vote" trope if they'd just run their normal one, even a post 2010 normal one (Micheal Steele's RNC had better things to do in 2010 than run the party's normal GOTV effort, it fell to the Republican Governors Association, which e.g. results in unnecessary losses in Colorado and Washington State, which they decided not to put their much more limited resources into).