Christian beliefs combined with Western philosophy have led to the incredibly wonderful world we live in. There is no reason that we, as the human race, aren't still living in a feudal system. Except, Greek and Christian philosophy led us to having iPhones and efficiently using our resources.
Nuclear energy has always been possible. It took centuries of stability in a society to find it. There is no reason it wasn't discovered two thousand years ago except that our society didn't provide for its discovery. The previous dominant societies didn't allow for our current mentality about individual freedoms. The provision of those freedoms is what makes great strides forward possible.
The more we celebrate and promote divergent belief systems, the longer it will take our society to move forward. Western, Christian beliefs make shit pretty. It is what makes poor people fat. It is what makes poor people have cable and cell phones. It is what makes it obvious that governments starve people, not localized drought.
When you hear moral relativism and say nothing, you support the burning of the library in Alexandria. You support the end of new knowledge in the Islamic Empire. You declare the world flat. You reject Truth.