Hi Starfish,
I fully admit that I could be one who falls into the ignorant category
. Though I don't curse God, I often question the existence of God and what form he/she/it would take. I really enjoy reading posts from people like yourself on this forum who are obviously more well read than I!
In my opinion there are several reasons why someone would come to a conclusion without seriously studying the Bible. One example is that if someone does not believe in the idea of divine prophecy or God speaking through people on Earth - and that can be a hard one to swallow - then the Bible loses much of it's value in their eyes. Whether or not they believe in God, they may not find the Bible, the Book of Mormon, or any other religious text to be a valid source. I'm sure you've heard it before - "There are so many religions that think they preach the divine truth - they can't all be true, so maybe none of them are"?
Second, every person's life experience and how they perceive their experiences is so different. Some people may feel sure that there is no personal God because of the multiple tragedies they've had to endure through no fault of their own. Others feel sure there is a God because someone they loved was cured of a fatal illness, know what I mean?