I know this is anecdotal, but I wouldn't betting it's not a "one off".
My son-in-law's father comes from Sudan. He has a brother who lives in Canada and another brother who trained as a doctor in Australia, but returned to Sudan (although he could have applied for an Australian visa) to help his own people.
The third brother has a son, who is my son-law's first cousin. This young man is a dentist and is not active politically. A few weeks ago, he was beaten up and left for dead in the streets of Khartoum by. He was caught up in the civil war. Fortunately, he survived and was taken home, where his own father treated him.
He has no idea why he was a target - probably just in the wrong place at the wrong time - but the whole family is now anxious about leaving home. Friends and neighbours bring them essential supplies.
I know from my son-in-law that family members are encouraging them to emigrate and it must be very tempting when he can see his uncles and cousins living in relatively peaceful countries. However, the situation in Sudan is currently so chaotic that applying for a visa isn't realistic. The family is relatively affluent, so could afford to pay somebody to "help" them escape. I hope they don't choose that option, but if the situation in Sudan doesn't settle down, they might seriously consider it.
They have a lot more to offer than murder and mayhem.