Uh, no. I'm completely open to the possibility that our science is woefully incomplete and that certain mystical ideas can be studied empirically at some date in the (far) future. I mean, physicists are openly discussing possibilities like atoms having consciousness, or that we live inside a computer simulation.
Frankly, I hope something like a sentient ultra-consciousness does exist to offer up some answers. But from our current (classical) conception of the universe, it would be erroneous to say that specific metaphysical claims have empirical backing (this is my original point), which is entirely appropriate given that metaphysics literally means beyond physics.
Which doesn't therefore mean that all synthetic a priori claims are true. A logically consistent system isn't true just because it is logically consistent, making your system of rationalizing God very unpersuasive.Instead of going back and forth pretending like you are trying to be helpful in this thread, just go ahead and tell everyone they are wasting their time and move on. For me "God exists" is not an empirical claim... it is a synthetic a priori claim .
You characterization of empiricism is also complete b.s. This is because empirical knowledge is founded on synthetic a priori claims (think of the use of mathematics in the hard sciences). I think you have this funny conception that empiricism = synthetic a posteriori―it isn't.