

“Legal” is also a bit fuzzy. Some countries frown upon copying an artist’s work, but that’s going to be a question for the manufacturer. Owning a reproduction is not illegal as long as you don’t try to commit fraud with it (i.e. hanging it in a gallery or selling it).
That seems like a fairly wide metaphorical leap. Are you sure that’s the intended interpretation? Because it just sounds like body horror to me. The third eye has a lot of symbolism in several religions, and comparing a corpse to a disposable vessel isn’t particularly Christian, either.
Either way, yeah, faith is powerful and fragile. It’s a function of humanity, an intellectual crutch that gives people the strength to stand on an idea that isn’t supported by reality. It is the substance of things hoped for, the evidence of the unseen. People who embrace faith for what it is will see it carry them through whatever criticism they face. People who use faith to construct delusions, whether knowingly to benefit themselves or unknowingly because it is all they have ever learned, will meet criticism with anger and resentment.