Apple is criticized more than the others because they are in the media a lot already. They are a hugely successful company that has entered the public zeitgeis

Apple is criticized more than the others because they are in the media a lot already. They are a hugely successful company that has entered the public zeitgeist in a way that few of their competitors have. So, with this comes a lot more scrutiny, and thus it was easy for Apple to be the focus of attention when Foxconn's labor practices started to be reported on in the US. Apple is handling this issue well (and much better than their competitors). But the real "issue" here is something that Apple has understood for a while. "The jobs aren't coming back" is a product of many factors, and the cost of labor is a red herring in this debate.