Unsure how to get on board with the "fantastic belief system" part (what exactly is 'fantastic'?), or the anti-conflict part as I believe most scholars of ancient history would say it has been the driver of the Chinese state which has 'integrated' numerous adjacent cultures over the last 2500 years. Present era stability is nice, however this was not always the norm, so I am umsure how much can be ascribed to Confucianism...