That's irrelevant. Let's assume that for a claim "G" no supporting evidence has been found.
Yup follow you there ok..
Anybody claiming "G" has to face the response that for "G" no evidence has been found. And that holding the belief "G" might be unjustified, by means of a plausible value judgment.
Still with you.....
But there's no way to claim "not-G" in return , without accepting the burden of proof for "not-G" at the same time. Claiming "not-G" purely based on missing evidence of "G" is a fallacy.
The burden of proof you seem to be talking about does prove G's nonexistance. The claims made by the assertion that G exists are testable because the assertion defines G. Not only do the asserted claims fail the test of observational evidence, the evidence also provides an explanation as to the replacement mechanism making G a false and failed hypothesis......
Also the statment "missing evidence" assumes, to me , that there is evidence, but it is missing.
But its not missing. Its nonexistant. there is no evidence to miss.
This is tantamount to
hoping there is some evidence,
but not having any.
This method is used often by some with the doubt that under the premise of "science doesn't know everything"
and "science cannot know everything".
But of course that is a retreating position in the face of the definition of G being disproved.
That retreat is ongoing as the evidence of neutral observation is not providing a definition of G. Its providing a positive definition of something else. Not G.
As G is defined by only non evidential assertion, not evidence from observation, then its easy to refute the defined value of G.
G is not "whatever i think up at the time" It is defined by its assertations of its proponants. It is therefore easy to refute, as the evidence says otherwise.
If you run out of fuel in the car, and your tank meter says zero, and your car stops working, the evidence supports the observation that you have run out of fuel.
So instead of taking it to the service shop for an oil change, you just fire some gas in there.
Ahaaa! the meter reads "not empty", and the car runs.
You may rightly say at that juncture, I ran out of fuel.
You have just proved a negative, ie the negative value of the fuel in your tank
when the evidence says there is NONE.........Yes?