Oh no! Poor management being bullied by a steward. They clearly know less about how things work than you do. Oh, right, they know exactly as little as you do, because they only exist in your land of make believe.
The way you tell it this steward is running the center. If he has management shaking in their boots so hard that they refuse to do what needs to be done in this situation, he is literally the biggest badass that has ever walked the face of the earth, and is deserving of nothing less than our deepest respect and admiration. If he commands that sort of respect from management when representing an on the job drunk, then you should prostrate yourself, and thank the ever loving gods that he is on your side. Especially when you get caught with a gun on you.
Let me fill you in on a few things, grievances pose zero threat to managers. In most cases they actually help their careers. If management is using the threat of a grievance as an excuse to not deal with an on the job drunk, they are hiding something or just really bad at their jobs.
Stewards can only be belligerent with management while enforcing the contract/representing a union member. Outside of that, they risk being disciplined for insubordination. If this steward is doing the things you talk about, management would not stand for it.
In the extremely unlikely event that this story has any credibility to it, then it must be true that management does not want to deal with the drunk. They are using the steward as an excuse to not do their jobs. It is them you should be upset with. Your poll should be:
Are all managers a bunch of lazy, incompetent, jack wagons?
1) Yes.
2) Absolutely.
3) How is this even a question?
that is not your job, such as who is drunk. 
