I probably should have written 'wouldn't have religious extremists'- there will always be people who have very extreme views and take a hard line in all areas of life, it just seems like religion breeds them more than most.
Personal belief systems are fine, anyone is free to believe what they want and worship their own notion of a higher power however they please; it's when people get together and start making rules that force and scare people into worshiping in that certain way that the problems start.
You wont get many answers from god- he doesn't answer the phone, just has an answer-phone message that says 'please leave your requests and wishes after the tone'; if you get a a positive 'reply', its luck, coincidence or because of your own or someone else's efforts, not divine intervention ( see: George Carlin video posted earlier, and the milk jug one too ).
The time thing just makes no sense- you really should study evolution more, and that video about the evolution of the eye; there is no need for a god-figure to have invented or created it, it came about through evolution and adaptation- you can see evolution in action with bird species that specialize in eating different foods and gathering nectar from certain plant species. To say ' oh yeah, god created evolution, he has a guiding hand in it' is just nonsense again- stop making up stories because you feel the need to wish something is true and therefore create a fantasy to validate your belief.
God's teachings didn't exist before 3rd parties wrote them down- you can't teach faith to balls of dust and gas. Here's a good one; what happens if one day in the distant future humanity does make contact with an intelligent alien race, and when they are asked about 'god', they reply 'who'? If god created all life, then to find a race that has no concept of a divine creator, that would just poo-poo all over pretty much every religious teaching out there.
As for quoting bits of the bible to back up a weak argument, try this on for size:
Like I said, for such a loving, caring god/jesus/holy spirit/ cosmic jewish zombie ( isn't that whole concept enough to make you think it's a bunch of silly stories written by bad story tellers? ), he certainly likes to smite people for making the tiniest of mistakes...