You mean separation of church and state American style, wherein Christians and Muslims are treated equally with Jews, right (well at least before Trump started 
delegitimizing Muslims & Hispanics)? It's such separation, in practice, not mere words, that protects all regardless of religious faith. Moreover, such separation supports human dignity and social justice, accords positive rights rendered by negative yield and would most certainly give pause to those participating in BDS due to Israel's discriminatory practices against certain Jews, Muslims, Christians and women. Any theocratic construct of governance is after all discriminatory by difinition, hierarchical too. Just look at Saudi Arabia for a similar example of theocracy but with an added autocratic hierarchy or Iran (less autocratic though). Yes, I agree with your separation of church and state but also in evolving standards of decency achieved by nation states as they mature.