[manarth]

  "Would I be allowed to sell that product in the US? Probably not."

I can't think of any legal reason why not. If the product meets US electrical/safety standards, and isn't in breach of IP such as patents, sure, it could be sold.

Whether anyone would buy it is a different question: I wouldn't be surprised if a product built in such a way were boycotted.

I would also expect to see court cases and fines (probably in excess of all profits for the product), for the labour conditions.

So sure, you could probably sell it. You probably wouldn't profit from it though.