I wonder, are there any real benefits of christianity, after all? (I am not talking about RL )

- Yeah, you can build musket units early on, but what I have seen, they are not that usefull. Archers easily outrange them. And they don'T do that well in melee combat either...
- Nanban ports? No use when you have no none to trade with i guess.
- The only reasonable benefit I see is that you can build european ships

Besides the diplomatic problems, you also have to promote christianity on its own to secure happiness in conquered regions, which slows down your progess.