The 870 year old original has been lost. No recreation effort can duplicate it. It is simply irreplaceable.
The same was said about buildings throughout Germany in 1945. Yet many were rebuilt. It will not be the original, true enough. But how much you wanna bet they’re gonna do it anyway, as a sign of perserverance, or just plain cussedness?
CC
Sadly, you are spot on.
Notre Dame is gone. Forever.