There was never an idealistic phase of Soviet Communism, apart from the poor deluded souls they referred to as “useful idiots”. From the time the Germans snuck Lenin into Russia as a sort of ideological disease vector, the Soviet state and it’s short-lived empire operated on treachery, murder and lies.
The people who complain about “unfettered capitalism” should consider how how life might be after the fetters are clamped on.