As one of the foreigners (god forbid I'm a Zimbo) that Putty fears so much, the argument is simple, age old and self explanatory.
If you don't want me working for your wonderful SA company then make sure they don't base outside of SA.
As soon as a company operates outside of SA its fair game. And seeing as Putty works for Solenta (of which I am an ex-employee) he really has no leg to stand on as I'm sure every aspiring pilot in whatever backwater Solenta decides to operate in would fancy the job in 'their' country.
You can't have it both ways.
Grow up.