Eritrea and Ethipia both had (have?) sizable Jewish communities. But why these immigrants are fighting in Israel over the situation in Eritrea is beyond me.
Don’t really know if any of the rioters were Jewish. But regardless, if you’re here as “refugees” you ought to be at your best behavior. This is not how refugees should act. It’s not how anyone should ask, but especially not refugees.
I regularly study Torah with an Ethiopian who came to Israel at the age of three. He has a big, beautiful family and is a deeply religious Breslover Chassid in a long kaftan. Couldn’t picture him doing anything like this.