[vecter]

That's because it violates Occam's razor. That doesn't disprove the existence of a God, of course, but it makes it less likely if you accept Occam's razor to some degree.

The reason it violates Occam's razor is because it is the strongest possible axiom you can include in a system. Why does anything happen? Because God. That's not a very interesting theory in that it can predict anything without offering any reasons or insights.

Not to mention, we have no direct observational evidence of such an entity.