No, we have historical examples of various X forms of Socialism that were supposed to be the intermediate state between capitalism and communism. All of the turned out to be authoritarian nightmares, but none of them actually made it to the communism stage of development.

Essentially truly supporting communism is merely saying we could be living in a post-scarcity state. The oligarchs ain’t gonna let that happen though and their captive governments aren’t about to let that happen though.