“...nobody can ever find evidence for the non-existence of God. “
Incorporeal, absent, invisible, convenient, and fictional suffice for me.
I suppose that "Pi" and "Zero" and other "intangible notions" also qualify as being without evidence of having existence.
Unless of course you can provide us all some physical evidence of "pi" or "zero" or some other intangible but fundamental precept upon which all of our modern "science' is based upon.
Drrr!