The French court explicitly used Amazons own product categories for its whitelist. Amazon would have held the full definition of whitelisted items in its hands the whole time if it decided to comply.

Amazon’s product categorization is not particularly reliable.

For example, if you go to Electronics -> Headphones -> Earbuds and sort by price, this book comes up: https://www.amazon.com/Wentworth-Letter-Joseph-Smith-ebook/d...

Although visiting it by that link then shows it as a book, so I’m a bit lost.

Amazon's categorization system is entirely broken. It's quite sad that on of the largest companies in the world has one of the worst product filtering systems I've seen. Hell, they even remove results when sorting by price low to high, but not high to low. They're Also missing thousands of sub categories and filters. Sellers even have the free reign to deliberately mislist their items, what good that does I have no idea.

EBay suffers similar problems but is more consistent witha mostly functional sorting system.