The Bolsheviks renamed themselves as the Communist Party in March 1918.
This was a recognition that Russia had become a one-party state and that the Sovnarkom represented the only path towards communism.
Lenin dismissed the idea of sharing power, even with other communists.
He had pledged "all power to the Soviets" but Lenin sidelined the Petrograd Soviet in favour of the Sovnarkom as the Soviet was dominated by other parties.
The Marxist principle that power should come from the people was being ignored.
Kamenev and Zinoviev both temporarily resigned as Lenin created a one-party state.
Lenin was following his own idea of "dictatorship of the proletariat" during which he was determined to crush "bourgeois attitudes".
Essentially, Lenin felt the Russian people needed guiding towards communism and were not ready.
In January 1918, demonstrators against the dissolving of the Constituent Assembly were shot at and 12 were killed.
This highlights that Lenin had created a dictatorship.