"Don't like the separation of church and state? Then move to Saudi Arabia and quit complaining!"
The separation of church and state is there for a very good reason. Why? Because there are tonnes of faiths out there, making it law to only follow one would be a violation of loads of peoples human rights.
But if you really don't like that fact, you could always move to Saudi Arabia. If you're a religious fanatic and believe religion should be imposed in law, you'd love it there!