Lack of evidence makes a stronger case for my claim than anything else in this world
Evidence or the lack of it depends entirely upon the perspective and limitations of the one looking for evidence.
A lack of evidence makes a case for exactly nothing, unless you know for certain (and not just assume, like you do) that that something would reveal a specific piece of evidence.
The best evidence for something might just be in front of our eyes but we cannot see it because we do not recognize its significance as evidence.
That spot on my skin might be evidence of cancer, but if I know nothing about cancer, I have no idea that the spot is evidence for cancer.
In other words, you have to have a relatively complete understanding of the scenario in order to know what specific evidence within your view is significant, is relevant, or is at all to be considered.
You would need to have a complete and accurate grasp, not just of the observables in the universe, but of the underlying metaphysics of it to have any sense at all regarding what counts as good evidence for God’s existence.
Science is about describing the observables and the patterns found there mathematically speaking. Science describes what happens with some consistency. It doesn’t get at the how (metaphysics) very much at all.
Science tells us that a force called gravity exists, that it has certain effects on the observable world, that those effects can be consistently described. But science doesn’t tell us how or why there is gravity. It might claim gravity is fundamental or ubiquitous, but it doesn’t get at how it is that gravity does exist in the universe or why it applies universally. To have any sense of that science would have to have worked out the metaphysics or ultimate explanation for everything, and then explicate the role of gravity within that. Science is not helpful, therefore, in what is or is not “evidence” for God.
So your claim concerning a “lack of evidence,” is simply a statement that you don’t see any evidence. So what? That claim says more about you and your inabilities to recognize evidence than it implies about God’s existence.