The economic ideology is only part of communism. It's really a kind of religion. I think even Marx wanted this to be the case, and for his writing to be taken on faith. James Lindsay mentions this, although I couldn't verify the source, but apparently this is what Marx wrote in his manifesto, but was later edited out.

The main objective of communism is to create chaos at every level of society, and to use the weaknesses of a country against itself to destroy it, to then rebuild their utopia. From this perspective, anything that is indoctrinating people with the spirit of revolution, or the sentiment of rebellion against your own culture, is practically communism. It's just that it has evolved into sophisticated forms, especially after so much language manipulation, that it is now well camouflaged for the new generations.