Wolf, what you experienced is very upsetting and annoying. But, from what you wrote you already had a run-in with this guy. Obviously, he knows how to push your buttons and probably everyone elses’ also. The real question is: Why are you giving him so much power? You are old enough to be comfortable in your religious “activities”. Enjoy your family and the remainder of the holiday.
If I may suggest, next time this gentleman makes a remark that irks you, ask him what he means? Maybe what he says and thinks are two different things…