Sure, movie and eating. Their movie and their food, not somebody else’s movie and not somebody else’s food.
And like any other business, they need to make allowances for people with disabilities.
If they don’t want to make those allowances they have an ethical obligation to refund the money to the disabled. The manager, and every single one of his defenders was both too stupid and too immoral to understand how that works.
The manager called the cops. His right. But it was a stupidity move from a business standpoint. Not that the manager or any of his idiot defenders have much upstairs in the comprehending business department.
Predictably, the diabetic called the press. Thats his right. Now the theater will lose more money from the incident than they make in a week. If not more, just read the commentary from the locals at the original site.
Predictable outcome, and the theater owner should explain all of this to the manager while he is firing him.