If Buddhism is not really a religion, why does it have temples, priests, a form of salvation, and worship of idols? It most certainly is a religion. I'm puzzled as to how you would define religion.It is really not a religion, a sit does not address if there is a personal God, nor does it revere Buddha as being liek we do jesus as a saviour, more akin to ine dhowing us the path/way to do good and avoid Reincarnation, so maybe like a japanese spin on Confusicinism?
Concerning Confucianism, it is quite different than Buddhism and much less of a religion, though there actually are temples for the worship of Confucius. Confucianism is a philosophy for social structure, and involves a system of relationships rather than a system of worship.