That's actually really bad. The guy is threatening the poor store owner, complete with stupid movie cliches like claiming he's just helping when in fact the intent is absolutely not to help but to bully, threaten and in general wreck the guys business if he doesn't go along with this set of Mafia codes.

Also, you have to consider the context here. The sort of people who make these threats are invariably very left wing, and they have a long history of using violence against anyone they view to be doing harm to their protected classes. Whoever gets this sort of threat will be wondering if some Antifa type is going to throw a rock through their window.