Send them packing!
Perhaps if Swift & Co. along with Tyson Foods and any other big companies who don't and won't hire Americans to do these jobs should be invited or even strongly encouraged to move their operations to Somalia or whatever other God-forsaken piss hole of their choice where they can hire whatever worker they want at whatever price they can get away with and then America can impose enough tariffs on the finished product should said company wish to peddle their product in America to encourage the companies that remain to hire Americans to work at their plants.
Just an idea. I for one am sick and tired of these imported common laborers coming here and demanding that we Americans accommodate their every demand or whim and the offending company just keep passing these inflated costs on to the American consumer all the while pocketing all the dividends from such sorry practices (as paying their help below slave wage standards in many cases) in their own pockets and their shareholders pockets.