UTF, you claim to be agnostic but seem to be convinced religion, or at least christianity is wrong and those who believe it are delusional. This sounds more athiestic or deistic than agnostic. I think the point GVG was tying to make was that gods existence or non existence has no direct bearing on ones life. The belief or disbilief in god could have an effect i suppose. After all i am writing this post so it had to at least prompt me to write. However if god exists or not doesnt change my life at all.
Example: Did god create the universe or was it the big bang (or a combination) dont know, dont care, what counts is that the universe and I exist. How it came about is perhaps an interesting philisophical/religious/scientific discussion but doesnt really change anything.