Stalinism was economic totalitarianism with a goal and an exit strategy. Authoritarianism was supposed to be a phase; the system would moderate itself over time. The degree to which that would have actually happened, we don't know. External forces destroyed the Soviet Union, so all we can do is speculate, but I suspect that if it had been left alone, it'd have fixed a lot of its problems and be a decent place to live by now.

The corporate system we have now is also economic totalitarianism. Financial interests decide where you can live, what jobs you can do, and what kind of reputation you have in the community. The issue here is that it's economic totalitarianism with no exit strategy. Neoliberalism insists that things have never been better (despite substantial evidence to the contrary) and there's no reason to exit from economic totalitarianism when we should, instead, "own nothing, have no privacy, and be happy".