Nope, no point whatsoever.
First of all, you cant prove it like you can prove gravity. Even hardcore atheists like Richard Dawkins admit this. His claim then again isnt that God doesnt exist, but that it is just so highly unlikely that there is no point in bothering yourself about it. And because of that, you will never really convince anyone, especially not religious people, unless they are extremely weak willed and go with whoever yells the loudest.
And second, even if you could somehow prove it, you still wouldnt convince anyone. People are remarkably good at rejecting pure logic or facts thrown in their face. People generally will not accept an idea when it isnt their own idea. People need to discover these things in their own time on their own. And when they do, they will only admit that they came up with the idea themselves.
The only reason why you can debate it, is because it can be so much fun to watch.