Ah, a world without religion

To be honest, Religion is necessary. It controls people. If there was no way of controlling people, then ironically more people would follow the free will principle and do things differently to the way they do them now. Also, there would be a less structurally solid legal system, because many laws are fundamentally based on the religion of the country.

It's a hypothetical foresight anyway. It's not going to happen. Pointless arguing about it if neither side will know the outcome.