The motivation is the looting - free stuff.
I remember the 1992 riots, women get scared and just want the riots to stop. Since the liberals control such things, women back the liberals.
Perot lost points after the 1992 riots, too.
In this era if there are riots they will be filmed, written about, twittered, and posted on the internet out of the control of the media narrative. Quite a bit of the film will be created by the rioters themselves. There won’t be any way to disguise it as a noble reaction to injustice as was claimed in the L.A riots.