The factory owners/managers employing these children are breaking local laws in forcing them to work long hours, sometimes unpaid as interns, and they know it. My criticism towards Amazon was not restricted to just Kindles. I don't know if you'd read the amongst others part of that post. I'm sure they are made to a decent enough standard as you have proved.
I shall not let the sarcastic and childish tone of your reply about my boycott change my position.