That's the one that they'll get you on, almost every time.
The safe retreat requirement only applies to a burglary of a non-dwelling or a physical encounter outside the home. There is generally no obligation to retreat from a dwelling and imminent death or serious bodily harm is presumed with respect to an arson, kidnapping, and sexual assault. The big issue with riots is arson, and under the laws of may states, deadly force is always an option to stop an arson. With that said, deadly force can only be used to stop an arson. You can’t blow the perp away after he throws the Molotov cocktail unless he is imminently about to throw another.