The French Revolution was a positive for the development of modern France despite the Terror, the endurance of the Castro regime owes much to the US policy towards Cuba, American anti-communism and the Cuban emigrés, and Russia in 1917 went one particular way but could have played out differently. People have a right to control their lives and those who thwart the people, when they are organized, indeed do so to their detriment. If you are so worried about popular revolution, make sure and vote for the Democrat that advocates for release of some of the pressure building from the extreme concentration of wealth in the U.S. in the hands of the global super elites.