"Are you equating God with the tooth fairy?"
As for me, yes. They're identical. Both are invisible, have powers that believers can't explain, and both have the same sense of goodwill towards humans.
Now, the tooth fairy is a pretty specific sort of deity, with a very narrow range of tasks. She's rather a nice sort of deity, giving money to children in exchange for useless old teeth. Would that there were more like her. I could use a few bucks for each hair that keeps falling out of my head. Now there's a sort of deity that I could support.
On the other hand, the Judeo-Christian deity sort of wraps all the functions of a good deity together. Some religions have specialized deities. Others have fewer of them. The Judeo-Christian model works out pretty well, as does Islam. Having a single deity to deal with sure simplifies a guy's life, even when it's sort of divided up into three avatars, so to speak. No more prayers and offerings to all those pesky specialized deities.
I just believe in one fewer deity than you do. Hindus believe in lots of them...and they believe just as strongly as you do. To each his or her own.
And what is a good deity?