Revolts and rebellions can be highly contagious social events. The American Revolution set off upheavals around the world. The Bolshevik revolution sparked related attempts in many other countries. The Arab Spring was a series of correlated events. A few Black Lives Matter demonstrations in the U.S. led to many more, in many other countries.
There is a real possibility that the events of Jan. 6 in Washington will also be contagious, in the U.S. and abroad.