First, read
Hillbilly Elegy. It's not directly about politics, but Vance is a working-class man who came from a home marked by substance abuse and every other kind of dysfunction you can imagine to become a Yale law graduate who works at an SV VC. It's at times tragic, at others hilarious, but it's always compelling and insightful. And it's hailed by conservatives, from humble backgrounds and rich, as an essential compendium when it comes to understanding the Trump phenomenon.
I can't recommend a primary source that answers your question, as I've yet to find one. Vance aside, the white working class is not known for its prodigious literary output. But I found this article enlightening[1]. Granted, I'm a middle-class coastal professional, so my personal ability to discern its truth is limited. And the author injects a little too much of her own progressivism for my taste. But it passes the sniff test for me.
[1]https://hbr.org/2016/11/what-so-many-people-dont-get-about-t...