This only works if the Christian god is real, which the majority of the world finds not to be the case.
I think it may be possible to develop practices and communities that provide similar benefits without the supernatural baggage, but it will take some work. I've been looking a bit into spiritual naturalism lately (and related groups), but it seems it is still quite early days for these movements.
I liken it to the law of gravity: everyone falls down cliffs whether they believe in gravity or not.
Similarly with the Christian ethic: it'll work regardless of whether everyone believes the underlying rationale. In fact, that is what happened in the West, its social construct is based on the Christian ethic, and continues to function despite most of the West no longer believing the underlying reason.
Ah ok, yeah I'm game with importing values and perspectives, which as you state has already happened to a certain degree. It is a non-trivial process through, and I do believe we need to build up a new shared foundation, supporting layer, rituals, etc. that don't have the supernatural baggage.
It isn't possible without the 'supernatural baggage'. You need a basis for why humans are different, but if everything reduces to natural processes humans are fundamentally the same thing as everything else.
I think it may be possible to develop practices and communities that provide similar benefits without the supernatural baggage, but it will take some work. I've been looking a bit into spiritual naturalism lately (and related groups), but it seems it is still quite early days for these movements.