There have always been people who escaped Communist countries telling us the same thing -- that Communism is a murderous, nightmare tyranny -- because EVERY Communist regime has been alike in that regard.
For example:
The Black Book of Communism: Crimes, Terror Repression (written by a group of leftist European intellectuals who researched every Communist nation of the 20th Century; most were actually Marxists, and were all horrified by what they found.) -- very expensive book but worth having if the cost isn't an issue for you.
There have always been people who escaped Communist countries telling us the same thing -- that Communism is a murderous, nightmare tyranny -- because EVERY Communist regime has been alike in that regard.
For example:
The Black Book of Communism: Crimes, Terror Repression (written by a group of leftist European intellectuals who researched every Communist nation of the 20th Century; most were actually Marxists, and were all horrified by what they found.) -- very expensive book but worth having if the cost isn't an issue for you.
Death by Government: Genocide and Mass Murder Since 1900 5th PRINTING Edition by R.J. Rummel. -- Less expensive but still not cheap.
You can read some of the information in Rummel's book here, at his website. For example:
28,168,000 VICTIMS: THE DEKA-MEGAMURDERERS
Note that it isn't just Communist nations that mass-murder "their own" people, but rather ANY nation that suffers under a real tyranny.
THIS IS WHAT WE ARE FIGHTING: a group that WILL kill its opponents and enslave those who are left. It doesn't matter what they call themselves.