This is why the Establishment Clause is so important and why it is so controversial for religious zealots. Without the separation of church and state, not only would religious and nonreligious minorities be openly and widely discriminated against, but our laws and justice system would be based on false premises and fallacious arguments. The disenfranchised would never be able to defend themselves against the ruling authority through logical discourse. The justice system would incorporate 2,000-year-old prejudices into sentencing. Hell, I wouldn’t be here writing this article; I’d be at home, uneducated and the indentured servant of a patriarchal imposed marriage.
In the Uk we have the church embedded in our state. However this the church of England and it is often seen as an inoculation against religion. The queen is titular head of said church, many state schools are C of E and their bishops sit in the house of lords (a non-elected version of the senate). Although they have spoken out and voted on matters like abortion etc. They often side with the left on things like welfare. It does not seem to coarse the same problems as it does in the US as most of the UK is secular. (only 2% attend C of E churches regularly) and minorities are generally protected by the British sense of fair play and love of the underdog.