Whatever the truth of the theory of evolution, the fact remains that we need laws to protect us from each other.
Ideally, our laws should be based on a moral system that has already had a track record of remaining in existence and apart from others because we are talking about the survival of our group ie tribe, nation, empire and civilisation.
There are five world religions. Hinduism and Buddhism are not good enough for Westerners and certainly not good enough Indians, Tibetans and Thais. India is after all a twice fallen civilisation. As far as I know, no one considers Tibet - now part of China - and Thailand - known for its sex tourism - to be great civilisations. They are not even empires.
If Christianity is kaput because it is cursed by God for its idolatry and blasphemy, then the only rational and moral choice for the West must be Islam.
Restoring Truth, Logic and Morality with Secular Koranism