Separation of Church and State is important and this is called Secularism. It is the thinking and decision making excluding religion. We live in a world of many minds of different beliefs so it is more important than ever that Secularism plays an important role in society.
Secularism means it is not in line with any beliefs, it is independent and based on a clear moral code.
So many areas of life can be dwarfed by non secular thinking. Religious groups boycott gay unions – stem cell research and advancement. Secularism embraces progress and moving the world within evaluation advancement.
Secularism is progress.