I think its more related to authoritarianism than communism, as same could be said for dictatorships. Authoritarianism gifts both a reason for dissent and the a

I think its more related to authoritarianism than communism, as same could be said for dictatorships. Authoritarianism gifts both a reason for dissent and the ability to purge it. Compare and contrast with a parlimentary democracy running a heavily capitalist economic system. While it gives plenty of reason for dissent it also provides little opportunity to purge. This give and take leads to less extremes and more stability in general.