Child slavery = bad (meaning NO Pay)
Child employees = good (meaning decent pay for thier location)
These kids are not only supporting themselves, and likely their parents, but they are learning a trade as well.
If America had people willing to work for less, then yes we would just employ here at home. But unfortunately it cost more to live than a lot of company's can afford to pay and still produce a reasonably priced product. Damn I hope that makes sense.