The main point is that those states who demand belief in a Supreme Being are discriminating against a section of their societies who choose to be atheists.

True, but I still maintain that the USA is *NOT the KSA.

What's your take on freemasonry? Off topic perhaps, but does a supreme being imply god, or some unknown force?

https://en.wikipedia.org/wiki/Freemasonry

"A belief in a supreme being and scripture is a condition of membership."