Here is an interesting article from the Bangkok Post. The Philippines is the most Christian country in the world, followed by Chile and then the US. 94% of people in the Philippines believe in god, 88% in Chile and 81% in the US. http://www.bangkokpost.com/news/asia/289355/philippines-leads-world-in-belief-in-god
Something isn't true just because you like the idea of it otherwise I'd have a billion dollars in my bank account.
Killings by a Christian aren't generally attributed to Christianity. Killings IN THE NAME OF the church or God or Christianity are attributed to Christianity.
Then you must be new here, anytime a self-proclaimed Christian (or even hint of being one) does something bad liberals attribute it to Christianity.