It's an interesting take on classism in the US, and it's certainly compelling. But a lot of the claims here, most notably the population percentages, have no supporting citations or research.
If nothing else, the idea that society is stratified on two axes based on income and social values, is kind of brilliant.
Looks like this was purged from his blog along with everything before 2013. Makes me wonder if the author himself moved on from this idea: https://michaelochurch.wordpress.com/