Actually, most of these people will probably be from the neighborhood that didn’t get its streets cleaned in the snowstorm in Feb - the Upper East Side, where the residents did NOT vote for him.
This was reported in the NYC press at the time, and it emerged that there was no real reason that the Upper East Side should not have been cleaned, except for De Blasio’s hatred of “the rich.” (He’s pretty comfortable himself, btw.)
So we can’t assume they’re going to be leftists, and in fact, I’d say many of them may not be.
When I lived in NYC (about as far north in the Bronx as you can get without falling into Yonkers), even those so called conservatives there had a very limited view of freedom. Take the topic of guns. There wasn't anyone I knew who thought simply being able to carry without a license was a good idea, and I didn't associate socially with liberals. I had many friendly arguments with my lunch buddies who hated the wealth transfer and welfare parasite culture, but who repeatedly told me that they would not have a gun in their house. A significant fraction of them thought that cars were an unnecessary luxury and that people should use public transport.
And finally an extreme case. One of the lab techs where I worked, a man in his 50's whom I thought old at the time (my how our viewpoints change), was mugged waiting for public transport. The mugging occurred in view of a NYC detective who arrested the criminal. The detective asked the victim if he would testify in court and of course the guy said yes. after showing up in court four times only to have discovered that the case was postponed (without anyone notifying him) He showed up and testified. The criminal (even then one of Holder's people) was found guilty and released with a year's probation tacked on to the probation he was already serving for another crime. Long winded story, but after the final act I asked the tech if he would have rather been carrying a gun and he still said no that the guy would have taken it away from him and used it on him. I ask how that was supposed to work, but I forget how the conversation went after that - long time ago Lindsey was mayor.
My point being that