The solution to our critique of the limits of marxism is to create an historical legacy for a new movement no longer bound by marxism, or the cult of Marx.
The model can be the American Revolution remorphed from its bourgeois revolutionary character. This ditches historical materialism, dialectical materialism, and adopts a general average view of (modern) man with no dogmas on theism/atheism, and standard views on free will, soul, classical psychologies religious and secular, etc,…No final determination is needed.
The context is a global revolution against American imperialism and the larger capitalist globalization colonialism, on the analog to the American rebellion against British colonialism.
As with the American revolution (or the French) no theory of history, revolution, or economics is required
What is required is a view along the lines of the Manifesto of a revolutionary passage to (neo-)communism in the expropriation of the bourgeoisie.
The outcome will be a globalizing version of (market) neo-communism with a foundational abolition of private property, but an open question on planning/markets. If markets are socially owned, or if they are simply abolished at the end, the point is that this transitional framework can be to simply jettison the whole round of harebrained marxism, and yet able to use that and other resources as references.
Note again that the American Rebs were not subject to any requirements of theory, belief, or religion. They didn’t have to be idealists or materialists, theists or atheists.
That simple. I suspect the whole apparatus of marxism is stalling any praxis at this point. The whole thing is simple the Old Testament, an historical backdrop.