The white girl could have diffused it and walked away, instead she said "you really want to what?!" Twice in a challenging tone. At this point, she got her ass handed to her. Seems pretty straight forward to me.
She should have slapped the shit out the instigator. Learn to fight and not curl up on the ground. Some free advice.
Trump made some dumb comments along the way, so people associating Trump with racism...are not too far off. You could have gotten elected by going a different route...instead he appealed to the fear that our country is turning too brown. Elect me, or you will be in trouble. It worked though.