“Show us where the Catholic Church says that venerating the shroud or any other relic is necessary for salvation.”
I didn’t say they did, so I’m under no obligation to defend it. That is a silly kind of challenge. Please reread my comment.
I said that the shroud you brought up is unnecessary for salvation. Therefore, when you bring it up as if everyone should accept and honor it, I’m pointing out it is unnecessary and not even capable of being verified as authentic.
Even if it were the actual Shroud of Christ, it is absolutely insignificant in comparison to eternal life and a relationship with God.
It would be one thing if you were merely stating that it isn't necessary for salvation because (surprise, surprise) Catholics would agree with you. Unfortunately, your main dig so far has been that it is idolizing. Which is untrue.