You still have not addressed the information content in the image itself.
I suppose you also do not believe in miracles? I think makes perfect sense for St. Helena to rely upon a miracle to discern the True Cross from others. For those who believe, miracles are a rule of Faith, a rule used to discern.
Incorruptible saints bodies are also make believe? Even St Thomas would upbraid anyone who denied that the bodies of these special friends of God are incorrupt.
Which Church is not corrupt? Which is one, spotless, without blemish? Maybe the one that produces saints whose bodies do not corrupt?
makes perfect sense - St. Helena? You might not be what I consider sane. Good bye.