Californication
The migration of people from California to other states to look for cheaper housing, better morals, lack of gangs/drugs/prostitution, etc., but bring their own lack of morals, drive up house prices, and bring gangs/drugs/prostitution to the other states.
The californication of Utah, Arizona, Oregon, and Idaho has escalated in the last 10 years.  Why doesn't California do us a favor and just sink into the ocean?