OK, so the logic here is that:
- The Communists were atheists.
- The Communists killed people who were not atheists.
Therefore, the Communists did what they did because they were atheists.
Nice logic. Let's see where it gets us when we apply it to other scenarios:
- The European Empires, the Third Reich, and the USSR were led by white people (Hitler, Stalin, English queens, etc.).
- The European Empires, the Third Reich, and the USSR killed and enslaved people who were not white.
Therefore, the European Empires, the Third Reich, and the USSR did what they did because they were led by white people.
QED.
- The Third Reich and the USSR were led by men with dark hair and mustaches.
- The Third Reich and the USSR killed people without mustaches.
Therefore, mustaches are to blame for the atrocities of the Third Reich and USSR.
Need I go on? Oh, and can you give me
one single document or otherwise that states that what the USSR did was done 'in the name of atheism'? Your strawman is looking more and more tired by the minute.
You still don't get it.
Religious wars: Caused by violent religions.
Communist atrocities: Caused by Stalinist communism (as opposed to atheism).
Of course, you're welcome to use 'guns don't kill people, people do'-style logic here, or be more general and say that doctrines based on blind loyalty to a supreme leader, be it God or Stalin or a feudal king, is a bad thing. Do with it as you wish.