Update: This video proved to be fake, according to this post on Twitter showing "behind the scenes footage."
Here is a more detailed analysis of the Joey Salads fake:
YouTube personality Joey Salads left a car laden with Trump paraphernalia in a parking lot of a "black neighborhood" and let a video camera capture what happened next. It took 30 minutes, according to the YouTube video, for locals to ravage and loot the car. The YouTuber did not identify what city his 'social experiment' took place in.