I believe at that point you are making a semantical argument on what is considered centralized vs decentralized, and what is and isn’t a state. A fully unified army of similar power would defeat a decentralized army, which necessitates some level of democratic centralism, by which point you have a state. Additionally, how do you see abolishing money while being invaded by Capitalist neighbors, as has happened to all AES countries?
I don’t believe Anarchism is more likely to succeed than Marxism in establishing Communism.