Бог.
Бог всегда побеждает.
"No Christian can be a communist because communism leaves out God. It regards religion psychologically as wishful thinking, regards religion intellectually as the product of fear and ignorance. And it regards religion historically as an instrument serving the ends of exploiters. This is what communism teaches about religion. And so, in a real sense, we disagree with this because we believe that history is moved not by economic forces but by spiritual forces. We believe that there is a God in this universe, a God who loves his children, and a God who works through history for the salvation of man. Consequently, we can’t accept communism at that point."
~ Martin Luther King Jr.
Though your preacher failed to address the Acts of the Apostles 4:32-37 and 5:1-10. He should have done speaking on this topic.
Some Russian Christians want the Socialism back but with the Church in charge this time.
It's amazing how different ideas people manage to find in the Bible. In some Western churches rich men were regarded as those to be saved and the poor to be damned to hell. The rationale was that any success is a God's blessing and any failure is outcome of sinning. I kinda like this.
If your Russian allows try reading this and presenting a refutal.