Earlier quoted context omitted.
While this would probably work , it seems insane to me that this would be the only thing to protect his listing from a completely different category of product being merged with another.
You're not wrong. Because Amazon's system is insane unless you realize it's designed only for the benefit of the corporation, not for any kind of fairness or quality.
Seems likely they are now the #1 seller of counterfeit goods globally, by a decent margin.