Which is more or less what I said, eh?
Then your mission, should you choose to accept it, is to educate those folks directly, in language they understand, of, first off, what's in your policies for them, and then and only then, what they are losing and what they stand to lose. (Note that the Donald did something like this in his own inimitable mendacious fashion: he promised the people left behind that he would bring jobs back, as well as dog-whistling the Others that were "bringing the country low". It's a similar narrative path, just very immoral and dishonest. There are very few tools that can't be used for ill as well as for good, eh?)
There are more ways than corporate media to get a message across, and one of the best ways to mobilise is still door-to-door, face-to-face. You can't count on the corporate media or politicians, so don't.
Start with education as a subject. A lot of people's children aren't going to get very far with the education system currently in place. Start with how it is funded - that's a winner-take-all system if I ever saw one, but I'll bet it's holding back even the well-funded schools. (There's no incentive to be really good, really efficient because they're a lot better than those inner city schools, amirite?) The benefit of getting a foot in this particular door is that you start helping the minorities as well - it becomes a win-win situation.
Uneducated people are uneducated, they aren't necessarily stupid. Many of the results of the last election are due to the fact that they think something is wrong as well - they have been kept from an accurate picture of just what that something is.