I think there's a (wrong) expectation that an American manufacturer would idiot-proof their products and not do anything dumb like double the voltage while keeping the connector the same.
The number of times I've heard people complain about "cursed" M-M 3 prong AC power cables suggests that there is no amount of idiot-proof proofing that will keep a determined American safe from themselves.
Yes, not sure if you meant that to be disagreeing, but I completely agree. China has is at par with if not surpassing the most advanced manufacturing capability of anywhere else in many areas. It can just also offer very cheap poor tolerance mass produced crap.
The thing is that there are lot of dollar stores in the West that want cheap shit for the paupers. And that is were the bad reputation comes from.