Yeah, the 'left' is an ideological mess. I don't see a lot there of more modern voices that hold sway and seem ideologically coherent to me. The irony is in their time at least up to 1917 the marxists examined and tried to update their theory to match their current conditions. It's like amongst some, everything has been frozen in amber from a certain point and among others, marxism has come to mean redefining class struggle as identitarian struggle. I imagine the historical adherents are really just objecting to the more modern more 'woke' invariants in a clumsy way.

There's never been much agreement on what marxism means. I believe Marx himself disliked the term and claimed to not be a marxist.