I don’t think too much is left of SA industry brainpower. In the past they had built the best artillery (with Israels help) in the world. They have also produced mods for the Hind helo.
SA had an excellent public and pubic/private school system.
My wife is from SA. A long time ago she was a tour guide. Thus I have spent a good deal of time there and her family and children still reside in Cape Town and and Jburg.
Check my post to marbelstine just above this one pass the word along about FR to those folks you know who are living there so they know they’re not alone.