If you're a college educated person and/or a tech person and you live in a big coastal city the past few decades have probably been pretty great, these cities have boomed, there are all these new industries that have sprung up, they've produced great jobs, you are smart and you work hard, same as the people around you, and everyone has gotten more conscious about big picture issues like the environment, gender equality and multiculturalism.
If you are non college educated, you don't live in one of these booming cities (or you live in a shitty part of town), and you haven't gotten involved in the new economy the picture may be very different. A lot of people in this category have witnessed the decimation of the manufacturing base and the communities around it. They've watched meth sweep over the country and ruin lives. They've dealt firsthand with the ramifications of teen pregnancies, broken homes, perpetual joblessness. All problems which affect "non college" people much more than they affect those with college degrees and stable white collar jobs.
So a lot of these people have seen the world get worse, not better. Their focus is on stability in their personal lives and it's getting harder. When you take that as a given and you start talking about issues of morality and idealism they might even get offended - what makes you so great that you spend your time worrying about this stuff instead of the practical concerns of keeping your job, covering rent and food, and staying away from shit that'll ruin your life (booze, drugs, bad people, whatever)?
They have no idea what to do other than vote for someone who at least sounds like them and sounds like he wants to help. That definitely wasn't Hillary. It wasn't Obama or McCain or Romney either but when Trump came on the scene they perked up and they went to the polls. And in fairness if he ends up doing stuff like building oil pipelines and cutting funding to the EPA, then he's creating jobs they can do and giving the finger to the comfortable asshole academics who've never had to worry about these problems.
They are not morally deaf IMO. They just have more immediate problems to worry about in their lives (or perhaps did at some point and still maintain those attitudes).
The difficult but clear solution in my eyes is to help them get what they deserve as fellow citizens, and which "college people" have, which is jobs, safe neighborhoods, and stable lives.