I'm afraid that this will just further enrage your average post-truther. These are people who, instead of feeling rage at their oppressors, feel a sick sort of pride for suffering at the hand of the robber baron. Loretta Lynn built her small country music empire around being a coal miner's daughter. In rural Kentucky, you will see "This Family is a COAL FAMILY" and "Powered by COAL" bumper stickers, while their loved ones get sent to Greenville for black lung treatment.
It's not an accident that they also tend to not have access to decent education. This is a country where adults tell their children that hard work and the sweat of your brow is worth more than a high-falootin' college degree, scoff at the educated for their smarmy elitism, and sing the praises of the coal mine (see: Loretta Lynn) or the foxhole (literally any country song about America made after 9/11). No one is taught about the shoe rooms in the Appalachian coal towns, no one is taught the names of the children who were crushed when the mines inevitably collapsed on them.
It's a complicated problem, and the solution is painful.
(Sorry for the rant. I come from a hole in the wall town and if I didn't have a kickass mom around to dispel the lies I was told at my hodunk elementary school, I'd be just like them.)