Not all of the component parts of the ideology are necessarily false due to their introduction and popularization by Marx. Personally, I find his writings obtuse and his beliefs abhorrent. There is, however, merit in the idea that the state should benefit its people, a large percentage of which are the productive working class, but it shouldn't be ruled by the working class. The state is its people and their culture, it shouldn't oppose their interests or subjugate and exploit them for the advancement of ideals alien to them.
> There is considerable evidence that the reduction in hours of work is a basic goal and commitment of the Communist movement and the Soviet state.
https://www.cia.gov/readingroom/docs/CIA-RDP64B00346R0001002...