I do understand both your sentiments and your motivations. But rare indeed is the person who is trying to convince someone else that his/her entire belief system (and that of their family going back 3,700 years) is utterly wrong, who is also not annoying as Hell. They exist, but are definitely rare. I appreciate your willingness to be delicate about it.
I do have a funny story, though, about a couple of Mormons who knocked on our door once (about 35 years ago). My brother - my very religious brother - answered the door and was talking to them. I was doing homework, and then had to go out for a while. To my surprise, I returned over an hour later and they were STILL talking. 45 minutes later, they finally left. I asked my brother why he bothered, he wasn’t going to change their minds (nor they his). His response was very funny. He said, “Yeah, I know that. But that’s about 2 hours that they wasted with me that they didn’t have to convert anybody else.”
Be well, and keep acting in the decent way that G-d intends us all to do. You do yourself and Him credit, and help to improve this world.
We get the Jehovah Witnesses all the time here. Mr. GG2 a Messianic Jew and bible scholar will go out on the front porch and talk to them and they finally just leave shaking their heads as they cannot properly respond to his dialogue. He is very well versed on the Jehovah Witnesses and its a scream.