RE: How do people with this little common sense become mayor?
APATHY.
Only 21% of NYC residents bothered to vote when De Blasio won.
I took the low turnout to be more of an indication of how few Americans remained in NYC (I know they said “registered voters”, but like my area a dozen miles to the west of NYC there are simply less & less people eligible to vote). If 21% of eligible voters in NYC voted DeBlasio in, then I suspect 60% of the registered voters died years ago (but are still on the rolls).
I hear ya...