Sanders vs. Trump would've been a much more interesting electionI agree, and it continues to perplex me that the Sanders campaign didn't put int he effort to develop a detailed policy agenda in parallel with the noble principles it was articulating.
You can blame people, if you like, for going with the sole candidate who at least pretended to give a shit about their problems
Oh please. I did not find Hillary Clinton a charismatic or especially empathic candidate, and her cautious incrementalism was a timid and unimaginative alternative to Trump's bold and dramatic (albeit shallow and stupid) vision. Clinton would have done far better to announce that her plan was to end poverty in America and establish a colony on Mars by 2030. People would have challenged that as ridiculous and impossible, of course, but it's no more absurd than the idea that we'd build a 20000 mile long wall along one border and get Mexico to pay for it.
What I'm disagreeing with is your suggestion that Clinton did not give a shit. She had a really detailed and well-rounded policy agenda whose primary fault was that it was too pragmatic and boring and cautious. It was not the right agenda for the times, but it's unjust to equate lack of vision with callous indifference. To say that is to accuse Mom of wanting you to starve because she insists you eat your vegetables. Sorry for the crude metaphor but the last election was in many ways a choice between Mom and Dad, and I think it's foolish to ignore the psychological dynamics that were in play.
I think we should also recall that she did manage to get 3 million more votes, but the GOP proved themselves to be superior electoral tacticians, possibly with help from some friends.