Then they can buy it.
Put it in a museum, or sell it to a WWII collectors. Knew an old vet that had a bunch of Nazi relics from his service. He took great pleasure in robbing them (as he said).
They just have a problem with making money from the sale. They want a freebie.
My great grampy was in the Pacific, including Manila. UNtil today, a katana was passed down to our family and came from that battle. Read Band of Brothers and it wasn’t a joke, GI’s were sending loot back to the US like they were mailing letters.
My father went in on D-Day. He survived and eventually “liberated” a large Nazi swastika flag...that he used as a spare blanket in the Hürtgen Forest. It’s still around somewhere.