Tolerance should be shown to all religions which tolerate other religions, so long as their dogmas contain nothing contrary to the duties of a citizen.
Gist of Idea
All religions should be tolerated, if they tolerate each other, and support citizenship
Jean-Jacques Rousseau (The Social Contract (tr Cress) , IV.8)
Quite a good guideline for the attitude of western countries to middle eastern religious practices which arrive in their midst. Rousseau says the state has a minimal core religion (Idea 19852), which thus tolerates most other religions.
Rousseau,Jean-Jacques: 'The Basic Political Writings', ed/tr. Cress,Donald A. [Hackett 1987], p.227