classless society without exploitation of surplus value

To quote your daddy Engels (from a wholly different context, but it fits):

These gentlemen think that when they have changed the names of things they have changed the things themselves. This is how these profound thinkers mock at the whole world.

greatest union membership in the history of humanity

And that “union” was better to agree with the party, or else…

That actually matches with what the Nazis did to unions.