OK, then the one difference is # 3--civil laws should not violate conscience.  In practical matter, with the availability of lots of cake makers to peddle their wares, no homosexual is going to be injured by a conscientious cake maker who declines to provide his professional services.  On the other hand, cake makers of conscience will be forced by civil law or regulation to violate their convictions in support of activities they deem wrong.  A civil society should allow that level of dissent; a civil law that fails to do so is unjust.