They don’t want to have a communist revolution. They want to have a socialist revolution and then wait for the state to implement communism on its own. A true communist would act to bring about communism.
Have you by any chance read The Communist Manifesto or Critique of the Gotha Programme? Both are very short reads, and give some level of idea of what Marx is directly advocating for, as opposed to his general critique of Capitalism or his philosophical work on Dialectical Materialism. Marx was no Anarchist, he advocated for building Communism over time. This didn’t mean “waiting for the state to one day turn on the Communism switch,” that ignores his entire philosophy of Historical Materialism, whereby societal contradictions are worked out over time, as nothing is inherently static and everything is in motion.
None of this requires any of Lenin’s work to be read at all.
If you’re saying that a “True Communist” would somehow magically create Communism directly via revolution and not over time, then Marx was not a “True Communist.” At this point, you’re deeply silly, and simply redefining Anarchism as “True Communism” to win a game of semantics and label all non-Anarchists as conservatives.
Edit: oh, in another post you directly out yourself as a Soulist, and thus you disagree with Marx not only on his advocacy for Communism, but also his philosophy of Dialectical Materialism. At this point, you’re content to deny science and Materialism for the sake of pushing forward the idea that ideas create reality, which is deeply unserious.
Dialectical materialism is a misnomer. I’ll give you an example. Suppose Alice’s boss pays her one dollar an hour, while Bob’s boss pays him a thousand dollars an hour. A dollar is not a material object. It’s a social construct. These quantities are, material, simply numbers in a bank account. Less than that, because numbers are social constructs too. Materially, these are magnetised bits on a hard drive. There is no material sense in which Bob earns more than Alice. The fact that Bob earns a thousand times as much is purely social, not material. Yet, as a result of the exchange of social constructs, Alice lives in a slum and cannot afford medical care for the tumor that will kill her in a year’s time, and she is driven by necessity towards revolution. While Bob lives a life of privilege in a mcmansion with three healthy kids from three different ex-wives, and Bob is incentivised to maintain the status quo and oppose revolution.
If the dialectical philosophy of marxists were aptly named, it would be called dialectical determinism. Alice and Bob’s lives are governed by cause and effect, not by materials. They are governed by the cause and effect of social constructs. We can say that materially, Bob is more wealthy because he has a mansion, but why does he have a mansion when Alice does not? Because of a social construct. Not a material. It is wrong to say Alice’s desire for revolution is driven by materials. It is in fact driven by cause and effect, which is much more universal than mere matter.
Being a soulist does not make me the enemy of dialectical determinists, which is to say Marxists. But it does make me the enemy of realists, who misunderstand the lessons to be learned from Marx’s writing and fixate upon the physical to the exclusion of truth.