If you're going down the proof route, the believers have to prove there's a god. There is no question here.
Two views, both with the same result:
1: Why? Well, the default state is nothingness and you're trying to tell us there's something we can't see. Prove it.
2: We're happy with no god and you're the one trying to convince us there's a god. You can't say "There's a god, you have to believe me, prove to me I'm wrong!" or else we're in the Flying Spaghetti Monster argument.
There's no Santa Claus, there's no Easter Bunny and there's no God. If you want to maintain that there is a God (which I don't actually believe you have tried to do, to be honest) because it makes you happy, like the Tooth Fairy, then sure, carry on, but one day, you'll grow up and realise they were lying to you because it was easier to deal with tooth-loss or buying chocolates or whatever.
"Then why," asked the Eskimo earnestly, "did you tell me?"