Marxism developed in 19th century. Maybe we have to rethink a bit what we want to stand for. None of these models still apply to our current time. There is no workers class anymore like it used to exist in the 19th century. Everybody is either job-hopping or doing gigs. Demand for workers is going to drop due to an end of world-wide growth. Either abandon the free market and give people more than they deserve (in a “free labor market” sense), or drop your birth rates (to lower supply of work and therefore increase wages).