You are telling it to american, where religion is one of the columns of freedom>>13158
Orthodoxy was already dead by the time of revolution. People didn't believe in it and the original idea was long lost.
What many western people don't get about the soviet times that it was a form of anarchy. You could kill people you don't like by letter and take whatever you want by force. Stalin and lenin didn't list all people they want to kill by names or personally shooting at people. People did it to each other. The church was devastated by its own hands, property was taken from it because people wanted to. Religion was too corrupted already by 18 century.
I might agree that byzantine orthodoxy wasn't bad, there are many good ideas. But in here and Ukraine it was more of an national identity and in Russia church was more of a kid for tsars they didn't want to have.
Also Belarus isn't orthodox in a way like Russia. We had uniat church and our tradition still borrows a lot from paganism.