Tried a bunch, but tried wrong.
The Lenin model of communism is inherently flawed for one simple reason. An Authoritarian Communism is an Impossibility. It cannot exist by pure definition.
The true ideal communism is a stateless utopia.
So yeah, the Lenin model is flawed to the point of uselessness. Or worse because any authoritarian government is going to kill its own citizens, while also being a low grade threat to neighboring countries.
No. The only path to true communism is via democracy. And there are countries that are moving in that direction.
Lenin betrayed the revolution. You mention the banning of the political parties. While it’s true that they “took up arms against Sovnarkom”, you’re leaving out the part where Lenin used Sovnarkom to coup the newly elected government because his party didn’t win.
Again, Lenin was flat out wrong. But I don’t think he ever actually cared about Russia ever reaching the true Marxist communist utopia. Lenin cared about power first and foremost.
He built up that dictatorship, and then handed it over to a monster.