[WanderingKnight]

Well, Kyuusai, I'm sorry, but this is one of the things that make me gripe about religion... It ends up separating people. I believe Japanese Buddhism has too much to do with their culture to completely split it from it. I believe it would be impossible to disseminate Christianity in Japan without major changes to its doctrine, in order to adapt itself better to Japanese Buddhist standards, or else you will end up with a polarized "us" vs "them" (Japanese vs Western Christianity).

Otherwise, you end up with cultural conquest. Perhaps I'm being too closed minded, but I find it very hard to separate Japanese religion from their culture.