I think the biggest disagreement I have with most of this thread is with commitment issues. Just like a guy with commitment issues with marraige. He wants all the benefits of marraige (sex and companionship) without the legalities and inconveniences and long term commitment of marraige but until you commit say I do you aren't actually married. People want the benefits of Heaven and God but they don't want to be tied down to the rules of religion(I mean the Bible, not the traditional rules many churches have added along the way). They want God on their terms. Pray when they need a pick-me-up but the rest of the time do want I want when I want. When I wanted a college degree I had to go to class and do all my work. Yeah I skipped and slacked from time to time but overall I had to try hard to finish the course. I couldn't show up when it was convenint to me. Same with God.
As for the question on what about the rest of the world?

Thats a tough one and I don't really know the answer. I do know at one point the Gospel was spread to the entire 'known world' which was much smaller back then. Since then it has been lost in many places so I don't know but lucky for me I don't have to have all the answers. I'll let God take care of it.
As far as athiesm......I think a higher power makes much more sense than a bunch of nothing blew up and created the universe and galaxys in perfect orbit and then a bunch of random protiens came together and BAM!! Life!!! Then that single living cell without any genetic reason started splitting and reproducing. My question for that has always been...Life here survives off of organic matter (dead things). How did the first cells survive on when there wasn't organic matter but that is for another thread. haha