Nonsense. If this thread gets deleted, did it ever exist? If I say "Hello" to you but no one else hears it, did it happen?
Truth is truth. Stuff happens.
It may be objectively true that the sun will rise tomorrow, but can you conclusively prove it will, in advance? I rather doubt it, and yet we all believe it to be true. Such are the limits of logic - the best we can do to "prove" that the sun will rise tomorrow is to point to all the yesterdays where it rose. Of course, that's a logical fallacy at it's core, so we're sort of stuck with no way to objectively prove that the sun will rise tomorrow.
And that's the sort of problem we run into when we try to logically "prove" the existence of God - God may very well objectively exist, but like the objective (we assume) truth that the sun will rise tomorrow, there's just no way to conclusively prove that it must be so...
(is it just me, or is FR slow suddenly?)
You make a valid and important point. The criteria of proof can often be PC.