Let there be freedom of religion, but keep religion separate from government. A country that bows down to the laws of religion will one day be governed by religion.
Religion has its place. It has a way of uniting people. It is good for them to unite under a common faith.
Within a religion everybody has the same covenant or laws. But within a government there are many people with different faiths or beliefs.
Once a government upholds one religion or belief over others, then the ways of that religion will take precedence over every other religions. Prejudice and bias will prevail.