Amazon certianly has the power to better enforce what people are selling on their platform and they choose not to. I don't know if it's their business model or they are just dysfunctional. There's been a whole bunch of articles over the past few years about Amazon listing for illegal products. Even if you buy sold and shipped by Amazon you aren't guaranteed to not get a counterfeit because third party sellers are allowed to comingle their products with all other sellers (including Amazon's)