Unfortunately these are feeble arguments that will not impress the theists. The problem is that there are so many differing definitions of 'God'. It is not possible to disprove the existence of all of them. The question, for me, is why does it even matter?

And here's another: if I am supposed to obey God's will, why do theists keep performing rituals the objective of which is to change His/Her/It's will? The lack of logic in theist thinking is proof enough for me that arguments about the existence of God are a waste of time.