We have reasonable work weeks and healthy working conditions because we fought against that exploitation. But instead of stopping it, we ended up merely exporting it; we don't make our stuff here anymore, but it's made in other countries where the conditions we had in the 19th century are still legal.
If we demand the same humane conditions from imported products as we do for locally manufactured goods, then either they get better working conditions, or we get some of those lost jobs back. Probably a bit of both. Either way, everybody wins. (Except that stuff gets a bit more expensive, but that's unavoidable when you start paying a fair price.)