@ehuckabee whether or not you agree with their views is entirely irrelevant unless you are trying to change their views which is a completely different question. You goal here is to get them to reduce their volume. To do that you will need to talk with them and have a civil discussion, build rapport, get them to like you or at least be cordial/receptive. Any mention of difference of religious views will immediately and permanently remove that possibility. Put your views away and talk to them with respect as humans which you both are — Darren H 1 min ago

+1. I was going to write an answer that the only non-legalistic approach would be to get to know them and convince them to do what you want based on their own values. Fortunately, it looks like your personal experience gives the OP a head start over what my generic solution would have been able to do! — Cort Ammon 53 secs ago

@Thunderforge Well, if OP can find some more basic thing she can't rationally explain than the one they started with and then just stops the discussion along the lines of "This is ok, everyone has feelings/premises and I'm not trying to take them away from you. Or if you notice later that it's not a premise at all, please tell me about it. :)" And the Socratic Method is not difficult, if they just agree to question each other about their beliefs (in the sense of learning for oneself, not of posing difficult questions) instead of arguing they are already using it. — Nobody 13 secs ago