Well then, since god does not exist, theoretically and by your own admission, whose responsibility should it be to end hunger?
It would be man's. I'm not sure man is up to the task. The question isn't whether or not God WILL do anything about the situation, it's whether or not he HAS anything to do with it. Or in other words:
IF God is DIRECTLY responsible for our material success (or in this case, our full bellies) and deserves to be thanked in prayer, is he not ALSO DIRECTLY responsible for the lack that others have?
You would say "No", Vanderhoven7, "Those people are a victim of circumstance." On this point, I would agree with you.
However, it then follows that anyone who has material prosperity (measure that how you wish) benefits from their circumstance, rather than being victimized by it. So, why thank God? Does he only intervene on behalf of those who are wealthy? If so, he's a real prick - just sayin'.