The problem that Montreal has is that it is all mobbed up. At this point in time, the most powerful Mafia family in North America is in Montreal, the Rizzutos. They have more money and resources than any of the NY families at this time. What they need is their own Rudy Guiliani and twenty years to fix the problem. Monreal is like NYC in the 50’s and 60’s, run by the Mob.
That’s another part of the explanation of why manufacturing fled NYC during that era. The expansion of city social programs in that time period is the primary part.
In many instances, public issues with the mob is evidence of a weak, feuding, mob. A city with a strong mob dosed not see their dirty laundry published in the newspapers.
I once dated a woman whose father owned a dry cleaning store in a city with a strong mob. The money he paid to the mob was the best he ever spent, far more beneficial and effective than taxes. When the street light in front of his shop went out he called his contact, and it was fixed the next day. When teenage punks started hanging out in front of his store, frightening his customers away, the police told him they had a right to do that. A call to his contact and two men with Italian-sounding names showed up and explained to the kids they should go somewhere else. The next day there were physical injuries, and the kids went away and never came back. Street crime was very, very low. The really bad guys somehow went on the injured reserve list, and no one took their place.