[dalke]

It's perfectly fine to say that an area is reserved only for adherents to a given religion. But your response incorrectly generalizes your personal beliefs as if they are true of all religions.

Non-Catholics can enter the Vatican. Certainly you don't think the Vatican exists only to entertain, do you?

As a core part of the Sikh faith, "the Harmandir Sahib is open to all persons regardless of their religion, colour, creed, or sex." (Quoting Wikipedia.) Do you really think that makes it solely a place for sight-seeing?