Read the Thurston quote, he directly states that while criticizing Stalin was a terrible idea, Workers had meaningful participation. Again, find sources, I am down to read, but right now it's your word vs historical evidence.
Bourgeoisie only refers to Capitalists in Marxian terms. The aristocracy was not Bourgeoisie, nor were slave owners. Read Marx, it's clear that you don't understand Class. If you refer to Monarchs as bourgeoisie then you've demonstrated that you haven't ever read Marx, because a huge amount of his writing is about how the Bourgeoisie differ from the aristocracy.
Even reading Principles of Communism by Engels could tell you that, and it's a pamphlet.