They sound pretty dumb. The leave campaign came out with lots of demonstrably false points and no clear idea of what would happen next. Stay warned we'd face economic uncertainty; That we'd still have to pay and face rules from the EU if we left and wanted to trade with them. Seems one side was more accurate than the other. The US should take this as a warning and anyone thinking of a protest vote should think long and hard. Plenty of leave people saying they regret that now the reality is sinking in.