Personally, I think that you handled this damned well. Rather than just preach or spout AT him, you spoke with him and did something that so many people seem to forget these days. You also LISTENED to him. Good for you!ok so this morn I spoke with him again and now I see why he is so skeptical
Because you didn't treat the conversation as something you wanted "to win", you took the time to listen to his reasoning and experiences that made him so skeptical in the first place.
By doing so, it's far more likely that he will be willing to return the favor and listen to you if/when you provide him any information on the subject.
Congrats on raising the bar on civility when faced with someone who appears to be confrontational or contrary. By being calm and positive, you've been one more example of how we (as a community) can best present ourselves, our experiences, and our information.
Well done!