This can be distilled down to if you are white and didn't get a four year degree and you work for a living you tend to be more conservative.
I have found this concept to be accurate for people of color that I meet as well but then I suspect I seek likeminded people. Or perhaps conservative people of color don't fit the consensually desired narrative and so are ignored.
Since the people who work for Slate and Politico have all been to college and know more than anyone else this is intrupted as conservatives are stupid and don't deserve an opinion.
The counter argument says that colleges present information from a liberal perspective.
After working in a college grounds department and being invisible for a year I would have to say to my fellow low info friends,
You just have no idea the BS your hard earned dollar is buying for the re-education of your children.
And now I have to return to shoveling leaves in the snow.
I leave you with a picture from warmer times/climes.