No one is saying the Shroud of Turin is not an ancient piece of cloth with ancient plant residue and blood from a certain region.
But let’s say I find a fossilized snakeskin in the Fertile Crescent from 5000 years ago (or whatever place and time Creationists believe the Garden of Eden existed). Does that prove that it’s the skin of the Serpent that supposedly tempted Eve?
No, it only proves there were snakes at that time and place.
Now, if they found a fossilized snake with perfectly preserved vocal cords capable of human speech - that would be a different story. LOL.
Now do the crucifixion image, and the crown of thorns.