Scientism makes claims on the fundamental nature of reality dealing with metaphysics and philosophy of mind that are unsupportable by science. It’s a belief system.
***Yup. And as such, they deserve the same protections as any other belief system.
I wouldn’t disagree with that which is, IMO, is to say there ought to be no inherent protections aside from personal respect. Beyond that people should be free to discuss their beleifs freely.