There is one party in Cuba. The current communist party. Cuban laws allow for only this political party to exist. They kill political dissidents in cuba. Shake your head, this is communism.

If you want to get into the weeds, I have some thoughts on the whole thing which would explain why I understand you calling it state capitalism.

In my opinion Communism by definition, doesn't actually, and can't exist empirically because it's a shell game. Not actually a thing, but an orienting of being, and driver of policy. Especially today with the strengths of capitalism over the history of totalitarianism for the last century, I'd consider no government Communist by it's own right, and usually just a government that employs communist principles of collectivism and totalitarianism in various aspects of life. Whether that be more tangible, like factory equipment and industrial goals. Or less, like identity politics, group segregation and discrimination seen by SJW's and cultural marxists in general.

It's an intellectual ideal alone. As societies try to approach/employ/enforce communist principles, surprise people don't like it, and restrictive laws and organizational social stratifications are implemented 'to enforce the good' of these communist ideals. Any attempt at legislating societal enforcement has failed in our history, and has failed extra-plus-bad in communist regimes for the last 100 years.

So when you say, it's not communism, that's because communism is an ideal, that abuses legislation, centralizes all power within the state, eventually foisting a culture of snake like navigating for everyday citizens full of avoidance and lies, ruled by a smile painted tyrant bent on eliminating the 'oppressors' in society that the ideology informed them are the problem for the last 40 years. All done with abuses of state power and democracy. It's no wonder so many people say it's not communism. Communists are unable to run a society on communism, so they resort to abusing the current systems they have, always by force. With the expressed intent of working towards a perfect future, for our own good, for humanity.

The state, not the workers, seize the means of production. The workers surrender the means of production. Where the true means of production is capital 'F', Freedom.

If you don't gag at communisms hypocrisy and narcissism, I can't help you.