You need to check a calendar and see the current year - the days of Casinos' roughing up card counters is long long long gone. Might be great for your screenplay or fan fiction but doesn't match reality.
Regardless of the year I think you might want to reconsider your overly confident notions about fiction/reality or at least the condescending tone. I don't know what is institutionalized in what places, but have been threatened by casino security. Fuck around and find out I guess
From where I stand, you'd need to show it's systematic. One single instance is not enough for me. Because your claims are general, as if they applied to many casinos.