Socialism

When Marxists say "revisionism," we do not simply mean "expansion" or "extension," but instead changing the pillars of Marxism. This isn't inherently wrong, Marx could be disproven and therefore revising his theories would be correct. However, what Lenin did was carry Marxism to the era of imperialism. He did not challenge or change the pillars of Marxism. By revising class into something that includes administrative differences, and isn't related to ownership of the means of production and distribution, you are attacking the foundations of Marxism itself.

The Politburo and various administrative positions were in fact proletarian. They received wages for their work, and did not gain through ownership of capital. They occupied high positions in the state, but this is not a class. All of your criticism of Marx (and you say it's criticism of Lenin, but this was not something invented by him but instead by Marx) rides its way back here. When I assert that you change Marx into an anarchist, I mean you are replacing Marxist class theory with anarchist power theory. This does not actually follow from dialectical materialism or the materialist conception of history.

The USSR's dissolution was complex. A number of factors contributed to it, but part of it was the Khrushchevite reforms that added competition within the state apparatus, Gorbachev's incompetent growth of problems laid under Khrushchev, and finally the Yeltsin coup. World War II killed the majority of competent, trained, dedicated communists, which hollowed out the party apparatus and left it vulnerable to careerist opportunists. The fact that it was a socialist state was of no consequence to socialist construction, it was in fact the weakening of the state that led to a counter-revolt.