Oh la la, Icaptain!! desole mon vieux but that's the game. You wanna fly man, you go where the job is, and sometimes, it's not in your homeland, especially when home is so small that there's only 1 major airline.
I am from Madagascar and I have not seen home for 4 years! Family? well, that was not part of the cv too.
I am a bit sad though to see that you insist on the fact that Air Mauritius employs a lot of foreigners, pole sana like we say in East Africa. If you wanted to be a pilot and only fly for Air Mauritius and only live in Mauritius, yes it's tough dude, but I don't think you have to blame the company, the foreigners working there and the politics for not getting a job. Do you have an ATR rating? There are good jobs in Africa man. Look for them. If you don't hve one, then I understand why they choose foreigners who may come with the rating
Salaams,
Heym I forgot, it is a very good company