That is wishful thinking: free trade creates innovation and innovation not only concerns new products but also new processes. If, for example, someone came up with a cost-wise way to replace all Foxconn workers or factory workers in general then these workers would be jobless.
As many others pointed out companies like Google have more revenue with less people, and what is worse is that if you want to create ten Googles there are not enough trained people to hire.
In simple game theoretical terms we assume that because we have some simple rules in capitalism we can predict the outcomes when indeed the game possible moves and ramifications are hyper complex.
