There is a lack of any evidence to the contrary.
The burden of proof is on the theist, not the atheist.
To convince someone else, sure. But for one's own beliefs? Burden of proof is on you, bub, if you want to make somebody think about this. Burden of proof is on the person making a claim, which in this case is you ("There is no evidence of a god"). A theist's evidence is in the wonder they perceive in the world around them, the sense of happiness, calm, and security they get from prayer or other rituals, and their own sense of purpose in the world. You can explain all that without god(s), but to a theist, that's overcomplicated and purely designed to reach the predetermined conclusion that there is no deity running things. Which, let's be fair, is a fundamental principle of scientific investigation, because if your answer is "God did it", you don't really have an answer.
That said, I should make clear that I'm not religious, and somebody who actually does believe in deities of some kind could probably do better than this Devil's Advocating stuff I'm doing.
EDIT: 10 new replies wtf. I do not believe that you have shoe gnomes. However, I have insufficient evidence to attempt to convince you otherwise. Therefore, feel free to carry on in your belief, and I hope that yours are spacious shoes. Gnomes need much room.