Please keep your tongue out of my mouth - isn't there something in the good book about that?
You've read books.
I volunteered in the refugee camp outside of Aranyaprathet, Thailand that was filled with Vietnamese and Cambodians running from communism. That was a great first hand introduction to the actual horrors of communism.
Later on I was a participant in the activity down south in the 1980's. Different situation, different people. Same evil as far as it went. An even better education about a bunch of things.
It's good you can read books and learn things. The problem start when you have to deal with humans instead of printed materials.
Life is a whole lot more complicated than the printed page, but since it's obvious that some other printed pages control you it's easy for you to believe that other printed words control other people.
You may wish to believe that some communist somewhere is thinking of how great it is to be an atheist when they squeeze the trigger on someone, but the reality is a whole lot more complicated.
Sorry, simple sky-pilot explanations of motive don't fly, but humans aren't one dimensional.