There are any number of examples of laws which have existed, even under what are counted as democratic laws, which deserve to be challenged. There are any number of examples where people have been required by their employers, including the State, to do things which are against their conscience.

In such a situation the right thing to do is to refuse, and take the consequences. Resignation is one otion. Another may be to refuse, in the knowledge that disciplinary action will follow, typically being sacked. And in some cases challenging that sacking through appropriate methods would be right, including industrial action by other workers.

Such conflicts can arise in the context of religion, but in many others as well. Refusing to cross a picket line or cooperate in an eviction are every bit as relevant examples as refusing to take off a crucifix or a hijab.