The Smallest Minority reminds us:
Today is the fifth annual Victims of Communism Day, a day to remember the people murdered by their own governments in their quest to achieve a "worker's paradise" where everyone is equal, where "to each according to his needs, from each according to his abilities" is the beautiful
dreamlie. R.J. Rummel, Professor Emeritus of Political Science at the University of Hawaii, has calculated that the total number of victims of Communism - that is, the domestic victims of their own governments - in the USSR, China, Vietnam, North Korea and Cambodia is 98.4 million people. For all Communist governments during the 20th Century, he puts the estimate at approximately 110 million. And this wasn't in warfare against other nations, this was what these governments did to their own people - "breaking eggs" to make their utopian omlette.
Don't think it can't happen here.