Glad to hear that's not you, though. Amazon definitely doesn't need any more people reselling like that. And good luck! I used to sell used books on Amazon (both seller-fulfilled and FBA) when I worked at a book store and year after year it became more and more of a nightmare until it simply wasn't worth our time anymore.
Even worse (this actually happened to us a couple years back), Chinese companies outright steal our images/assets and then put them on other channels like Temu or Aliexpress, selling their knockoffs there pretending to be us. We were only made aware of this when we noticed products asking to be RMA'd from our support email, but with order receipts coming in from Aliexpress.
I digress, but the beatings will continue until morale improves...