If it’s an error based on my only reading social media posts, I’d hope I’d be corrected by actual Americans.
If it’s some matter of fact, and the facts are on my side, I’ll continue to argue.
This kind of thing (being corrected about South African facts by an actual resident) isn’t at all a new experience for you, after all, so I don’t know why you’re sticking your oar in.
I don’t know, were the numerous British people arguing against it also wrong?
I don’t know what your argument was, or what facts were bandied about.
My argument is not that Brits can’t argue with South Africans about South African topics.
It’s that when they are corrected about a factual matter by people with actual in-country experience (as in - I have sung that very chant, at the actual people it is intended for, and been shot at for it), they not just blithely repeat the same incorrect fact later in the same thread as though no correction had happened.