Bradbury would be proud!
I believe " destroying" any vintage cards are almost like committing a collecting "sacrilege" ......
I believe it to be wrong to destroy a piece of history intentionally for personal gain, and deprive future generations of the opportunity to see it one day....technically, if the owner wants to do whatever they want with their cards it's their freedom, is it douche???HELL YA...unethical?? not in the literal context....douche???YES
remember....technically we all are only "borrowing" these while we are alive.....
here is a titus "tweener" scrap the alleged hoarder will not get