However it's a disingenuous to claim that Marxist political philosophy doesn't imply extreme centralization in practice. You're substituting the Marxist political projects of today (and yesteryear) with a hypothetical as-of-yet-unobtainable Marxism of the future.
I'd be a Marxist if all its problems suddenly disappeared and we were left only with the upsides. Who wouldn't?
Marxists are for organizing society to serve the needs of the working class which reproduces society.
Marxists are progressive as they don’t deny the progress of history, which moves in one direction and cannot be turned back. Marxists understand capitalism as a necessary stage in the development of society but one that can only be temporary.