Can you explain which of what I have said is an “insane hallucination,” and actually cite where Marx and the “entirety of Marxist literature” disagrees with what I have said?

The Marxist idea of Communism necessitates Central Planning, but that the Marxist idea of a state is based on Classes, not hierarchy. Here is Engels directly stating as such in Socialism: Utopian and Scientific:

When, at last, it becomes the real representative of the whole of society, it renders itself unnecessary. As soon as there is no longer any social class to be held in subjection; as soon as class rule, and the individual struggle for existence based upon our present anarchy in production, with the collisions and excesses arising from these, are removed, nothing more remains to be repressed, and a special repressive force, a State, is no longer necessary. The first act by virtue of which the State really constitutes itself the representative of the whole of society — the taking possession of the means of production in the name of society — this is, at the same time, its last independent act as a State. State interference in social relations becomes, in one domain after another, superfluous, and then dies out of itself; the government of persons is replaced by the administration of things, and by the conduct of processes of production. The State is not “abolished”. It dies out. This gives the measure of the value of the phrase: “a free State”, both as to its justifiable use at times by agitators, and as to its ultimate scientific insufficiency; and also of the demands of the so-called anarchists for the abolition of the State out of hand.

Stateless in Marxism is not the same as Stateless in Anarchism. The repressive elements of government upholding class relations die out in favor of the administration of things. Central planning.