Not sure what part of ''people who don't believe in your Christian God are both comfortable in their beliefs and don't want to be preached to'', you're not quite getting. Christians just can't help themselves in preaching to non believers. We're good. We were mostly likely raised Christian, have evaluated Christianity as a religion and decided we want no part of it.The difference in where you are now and where you can be is very simple. It is only four words, "Lord dwell in me".
Scary? You bet. But it is the difference in being on the outside looking in and being on the inside looking out. There is no in between.
I will only speak of my personal belief, but I have absolutely zero fear that I am wrong in not believing in your specific version of God. If God does in fact exist, then I have no doubt Christians haven't cornered the market on the correct version of God.