You are mixing a lot of things here : capitalist vs anti capitalist regime is not this same as progressive/conservative politics.
If you believe social progress should benefit only you and not me, you are not progressive.
And I’d like to point out that all regimes you mention are not different from any other : they all had a ruling class. This is, again, not progressive.
And as I pointed out in an other comment: studies suggest that Totalitarianism is not about left or right, because they use the same concepts to validate their ideologies.
You are mixing a lot of things here : capitalist vs anti capitalist regime is not this same as progressive/conservative politics.
If you believe social progress should benefit only you and not me, you are not progressive.
And I’d like to point out that all regimes you mention are not different from any other : they all had a ruling class. This is, again, not progressive.
And as I pointed out in an other comment: studies suggest that Totalitarianism is not about left or right, because they use the same concepts to validate their ideologies.