One frequent tired argument that one hears from atheists, is that we monotheists are basically atheists, because we reject all of the gods, except one.
The problem for the atheist is that this is rather like saying that a person is homeless who has only one home, because he lacks all the other homes that there are. It's worse than that, though, because there is no other god besides God, the other "gods" are just mute idols, demons, and figments of imagination.
In a way it's rather like saying that we are dead, because the only thing that differentiates us from being dead is that we are alive.
According to such reasoning, I would be a dead, homeless atheist, though I live, have a place to lay my head, and trust in the true and living God. It's a throwaway argument, but its been thrown enough times that we must be ready to bat it away.