If you beliefs aren't based on religion the law does not shield such actions. The proposed laws are providing special privileges to hide only behind religious beliefs.
You appear to be trying to intimate that the law provides an exception to all business owners to refuse any customer. It doesn't, it only provides special privileges if the owner claims it's based on their religion.
Take for example two business owners. Once says "I don't like blacks, therefore I don't serve blacks." Such a position is not based on a religious belief an there is no exception under the proposed law. The other business owner says "I have a deeply held religious belief that I should serve blacks." - that owner receives an exception because they used religion as the basis. And before you say - "discrimination against blacks isn't a tenent of any religion" - I'll point out the law clearly says that a persons religious beliefs DO NOT need to be based on any organized religion, it is their personal beliefs that matter.