(For Bloomberg, it was an obsession with becoming British aristocracy)
He's a lot more than the "soda ban guy" here.
It's a real stretch to suggest Bloomberg is somehow responsible for Williamsburg given the artsification -> gentrification was well under way by the time he was elected in 2001.
he (via his command of the NYPD) was also a serial violator of civil liberties, particularly of minority communities. he also was directly involved in the "aristocratization" of many parts of Manhattan and Brooklyn and presided over what has gone on to become a major housing affordability crisis in the city.