woke is poison.
I really think you have it wrong on the Free Presbyterians. Look at their web site and get their materials and sermons.
Likely, it would be a good idea to go back to the genesis of the Liberation Theology movement. Granted it was a Catholic movement, led by Maryknolls and Jesuits, but they in turn were influenced by European Catholic Marxists that emerged after World War II. A good start for the influence they had in North America is Blase Bonpane’s, Guerillas of Peace: Liberation Theology and the Central American Revolution. South End Press (1985).