On paper, I would imagine a Somalian warm body looks like a Mexican warm body. On the factory floor it may be quite different - or it may not.
I stand by my economic hypothesis. Revenge would be throwing good money after bad.
That would be true if this was the only Tyson plant.
If it serves as a warning to the towns where their other plants are located, that if there's objections to the Mexicans it will result in Somalians being brought in to replace them, then it can be cost effective
Also, you assume that corporate executives always act from rational profit motives, and would never, ever consider doing something unprofitable just to stick it to some people who have f%$#@d with them. I've known a few corporate execs. For too many of them, sticking it to somebody who has messed with them comes first