Why are you telling people what their self-interests are? These people have clear priorities. Two candidates addressed them (Trump, Bernie). Only Trump made it to the Finals so they were left with no other choice. Its really that simple. HRC flip flopped on TPP and her husband enacted NAFTA, policy that these rust belt workers blame for their conditions. Why the fukk would you expect them to vote to fukk themselves over again just because their party is more righteous in general terms?
Clinton addressed them through policy, but didn't campaign there. I don't understand why you're refusing to accept that fact.
And yes, they voted for Trump under the false hope that removing trade deals would return them back to the glory days of manufacturing despite the realities of automation.
They have voted to delay the inevitable and now they're polluting their air, water, losing their insurance and healthcare.