...or Bolsheviks, try reading wikipedia about the immediate post-revolution violence called the Red Terror as it will turn your stomach it was truly, truly terrible [0]

...or Maoism "struggle sessions" which resulted in 2 million deaths [1]

...or just read about mass killings in communist regimes[2]. Clearly communist governments have mass killed a lot of people.

[0] https://en.wikipedia.org/wiki/Red_Terror

[1] https://en.wikipedia.org/wiki/Struggle_session

[2] https://en.wikipedia.org/wiki/Mass_killings_under_Communist_...