Why Communism is good for Capitalism!

From everything I have been reading lately - namely, Niall Ferguson and Rachel Hope Cleve's Reign of Terror in America - I can only gather that the historical threat of revolution has been a great aid to the consolidation of democracy, humanitarianism and capitalism. It is clear then that what small d- democrats need in the run up to the British election is a good dose of secular atheistic violence. We need a real Bulgakovian devil threatening disappearance or land redistribution. Otherwise, we may continue with this voting parody and end up watching it all collapse on itself. And then what? Badiou says possibility, I say nightmare!