Religion should be left out of business, ideally.
A corporation is not a human in regard to a human's rights. It is a fictional entity that is only regarded as a human for the purposes of creating contracts. A corporation is composed of many different people, often of many different belief system, and as it is not itself a human, it cannot have one religious identity.
Your beliefs should never put you above the law.
Corporations are not people; they do not have freedom of religion nor freedom of speech. A CEO does not have the right to force his or her religion onto the entire staff.
Freedom of religion.
The law has no right to limit religious practices.