[TheCrownedFox]

In regards to how religious beliefs are treated in the USA, it's not restricted to the major religions of the world. Someone's communication to their God does not require a many thousand year lineage, it doesn't even need to be able to be communicated in a comprehensible language to others.

It may be that some people aren't professing sincerely held religious beliefs, but if they say they do then as the law is written then it must be respected by their employer. The employer is able to ask some clarifying questions about the religious belief and they only have to provide what would be considered a reasonable accommodation.

The law can certainly be changed but besides the difficulty of the process the implications of allowing the government to gain additional control over what is an acceptable religion sounds like a great way to lead to additional religious pogroms.