Right, I don't see how there could be any evidence to convince a person to the point of a 0.0001 chance of God. And so when all of these people say that they've concluded that the chance of God is negligible, I think that they're subject to a strong cognitive bias worsened by the fact that they're supposed to be immune to those.
The problem is that you're not being consistent in your handling of unfalsifiable theories. A lot of what's been brought to the table are Russell's Teapot-type problems and other gods, but I think I can find one that's a bit more directly comparable. I'll present a theory that's entirely unfalsifiable, and has a fair amount of evidence supporting it. This theory is that your friends, family, and everyone you know are government agents sent to trick you for some unclear reason. It's a theory that would touch every aspect of your life, unlike a Russell's Tea...
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.