https://redlib.catsarch.com/r/stupidpol/comments/1sh7bi2/how_the_left_ditched_class/
The only critique I have of this is that he doesn't get to the "why" the focus on identity over class. Hint....it is post-modernism.
Because left wing spaces became dominated by rich PMC types that were totally disconnected from the material realities of the working class, and replaced it with pseudo intellectual identity politics to mask the disconnect. Corpo ghouls funded the push because dividing workers with idpol rhetoric stalled unionization and class consciousness.