Regarding 3, I don't think you can uninvent it, as it seems to be part of human psychology. Books like Sapiens and Elephant in the Brain explain why, religions

Regarding 3, I don't think you can uninvent it, as it seems to be part of human psychology. Books like Sapiens and Elephant in the Brain explain why, religions are useful social technologies to bring together large groups of people and coordinate them. Humans in religions which were able to do that have survived in the game of natural selection versus those who did not believe in religions, and so religion itself has become melded in our psychology.