Yeah, Indonesia. You said "great and thriving", which the Christian community in Indonesia IS. Your OWN RESPONSE demonstrates that the Indonesian Christian community is great and thriving enough to be attacked by extremists.
And, as I've pointed out already, the Indonesian Islamic community and government generally supports the Christian community, up to and including guarding Christian churches against attacks by extremists.
Even a cursory search of the info can reveal that the Indonesian population, regardless of religion, is generally unified against Islamic extremism (hell, once again YOUR OWN POST demonstrates this, if you actually bothered to read what you posted). It's not Islam causing the problem, it's extremism.