Again, fundamental misunderstanding of Russell’s Teapot. You’re attempting to talk about proof, using the language of logic, to make sweeping claims that logic cannot make.
If you’re saying we can neither prove nor disprove the metaphysical, we’re on the same page.
If you’re saying the metaphysical doesn’t exist because no one has proved it and they have to prove it first, you don’t understand how logic, as we understand it today, works.
Edit: to highlight your issues a little, “it doesn’t exist because it doesn’t exist” isn’t logically sound. Unlike Russell’s Teapot, circular logic is an actual, provable fallacy rather than a rhetorical tool that is not a result of logic. More importantly, you’re depending on logic as a system of faith, just like religion, unless you’ve found some results that contradict Gödel and company. We’ve made all of it up and, with our understanding today, it is not objective.