You don't have to. Only if you want to try and stop them from being religious nuts that's where you start.
It's not your job to interact with them so don't. If they are actively causing you pain where you are you have a right to defend yourself to get them to stop but like any violence there is a line where you cross from self defence to just taking out your anger and trauma on someone else to make yourself feel better. People who do that make the job harder for those of us who want to stop religious trauma from perpetuating.
Respecting religious belief is part of the healing process of religious trauma. It doesn't mean subscribing to belief in religion. It means seeing the actual human beings inside the system that hurt you.