That's because Amazon is, in large part, a front end over Alibaba with exactly zero enforcement of regulation. But they do manage to charge way more!
xp84
Indeed! Amazon, it seems, is just a hyperscale fulfillment plugin for Alibaba (etc). It's like a CDN layer for physical goods, moving them to the edge and delivering them at a speed few can even dream of touching due to the cost of having that many POPs.