Are you talking about anarchical communism or Marxist communism? Because Marxist communism is NOT stateless. It is very stateful, it is statism. There have and are many nations who are communist states.
But if you are going to defend anarchical communism then you must say so. Because there is a huge difference. Certainly you cannot possibly run an entire nation as a anarchical commune. That would never work. Communes only work when the numbers are small. I doubt over 100 in a commune could survive very long as a cohesive group.