Very well written. You get kudos, too. Thanks for your honesty. I hope that the church people continue to treat you lovingly and with courtesy, despite what faith decisions you do or don't make. It's "natural" that they want to talk to you about giving your life to Jesus. The genuine ones in the congregation are anxious to share the wonder of life, peace, and salvation it has brought them, and of course they want you to experience that as well. But hopefully they'll be courteous about it, and continue to treat you as a person and friend, and not a project.
One specific thing you said was that you see nothing divine in Christianity, but you didn't explain that. I've actually been having another conversation here about "How do you verify the God of Christianity?", but I'm not sure if that's the same issue or not. Maybe you could explain, and we could pursue that, if you wish.
I also understand what you mean about the Barnum Effect. Too often, whether religious or not, people tend to see what they want to see, hear what they want to hear, interpret their life circumstances and the input around them in conformity to their presuppositions and value system, and bingo, amazingly everything ties together and "speaks to their heart", yadda yadda. I get it. One of the presuppositions guiding that, though, it seems, is the foundational belief that it's all a crock, and people are gullible. Obviously I think there's a reality to spiritual things, and while some people are playing along, others are truly caught up in a reality beyond reality.