I concede that it is easy to pick fault with things as they are, but to date no nation has fully embraced Christianity as taught in the New Testament.
Thank god for that!
Seriously, I suspect some of the middle-Ages nations would contest otherwise, though I'm more than ready to concede that their interpretation of it would be different to yours.
On the evolutionary time scale we are still in the early days of seeing the impact which the life, death and resurrection of Jesus has had on the world as a whole.
We're still waiting on some sort of reason to accept that it happened - we're seeing the impact the story has had on the world in the attempts to sustain misogynistic, homophobic and, in some instances racist ideals as well as sectarian violence and theocratic, repressive states. That's before we get into the mere fact that adherents of Christianity add validity to the idea that religious belief has merit in the first place, justifying similar excesses from the likes of Islam and Hinduism.
The shock waves of this monumental event are still going on. I still maintain that we are seeing a better quality of life in those countries which have a Christian heritage, but I fear that human endeavours to go it alone will allow the evil one to flourish.
I'd agree we are, I'd contest whether that's because of Christianity - primarily because our lives have improved increasingly as religiosity has diminished. It may be that there's a degree of openness and permissivity it Christianity that's not available in other religions that's allowed scientifically validated ideas to flourish, which in turn have led to an increased secularism.
I suspect, though, that the flourishing of human wellbeing has been due to the wealth of easily available natural resources in Western Europe which allowed an increased proportion of the populace to divert their attention away from subsistence activities and towards other pursuits - such as science, philosophy and art. That these lands were populated by Christian adherents was happenstance more than anything else.
O.