"Soqualist Unity"
This doesn't seem to be a typo, so I have many questions
It most certainly is not! Soqualism (or Equalism, as it is known in the more socialist friendly European nations) is an ideology that arose ITTL's America; inspired by the works of varying political philosophers of TTL's America. Soqualists are essentially on the left of the spectrum, are pacifists, and believe in an underlying equality for all peoples. When describing economic classes, they adhere more to the Boydian* vernacular as opposed to the Marxist vernacular.
* Arthur Boyd, a leading economic and political thinker in 19th Century America ITTL.