My n=1 observation is that these bogus listings cause me to either find a well-known brand and/or go somewhere else that has more trustworthy listings.
I’ve drastically reduced the amount of shopping I do on Amazon, mostly due to my perception that it’s become a toxic waste dump. Amazon is good at getting stuff to you quickly, but the prices are nothing special and the shopping experience is trash. It’s much more satisfying to order directly from the manufacturer (usually with free, reasonably fast shipping) and know that what you’re getting is genuine.