A boycott would force the hospital to take drastic action to keep their doors open.
Change in hospital leadership can make a big difference.
Rule #1 is for them to realize there is a serious issue that requires serious repair. Before they are forced to believe so they most likely won't do anything.
go ahead and close every hospital in NY because if you ask someone they will have something bad to say.
Example: according to that video circulating NYU should be closed and with that throw in NYU Brooklyn (Lutheran, and cobble Hill) for good measure.
I heard a story once about Lenox hill so let's shut down the whole northwell system.
You see the problem here, changing ownership or closing them down won't help. Yes there are bad apples in every hospital or should I say in every health care facility in the world. Something needs to be done I agree but that's not it.