The guy who wrote the 11 nations book expanded on Albion's Seed by including the first nations, Spanish colonizers, and then split off the Left Coast from Yankeedom, as well as created a new Far West nation between Appalachia and the Left Coast.
Whether you like going into that detail or not, there really were only four nations that together formed the United States. Each of them derived from the cultural and political fall out of the English civil wars. To understand why we are this way today, you need to understand those original four nations.
To understand progressivism in particular one must understand the Yankee Puritan roots of that secular religion.
Likewise, to understand why the predominantly Southern GOP has no issue with corporate exploitation of people, you need to understand the slave lord origins of Southern culture.
Just read the first section on the origins of the Yankee nation, and bullshit like MeToo, social media witch hunts, public shaming, etc. will make a lot of sense.