Typical Stalinism/Maoism: Anyone who opposes my implementation of Marxism is an enemy of the proletariat and can be persecuted to any extent. These people agree with the mainstream idea that communism can't be implemented democratically, but come to the conclusion that democracy must be abolished.
This meme is an open dogwhistle to tankies and thankfully meaningless to anyone who hasn't fallen into or interacted with this small subsection of the far-left.