I've heard of another tactic. Major casinos have a database of undesirable individuals who have been caught cheating or are simply suspected of cheating. Such people will be denied access to the casino. II have also heard that major casinos exchange this database with each other. And if you get blacklisted in one Las Vegas casino, you may not be allowed in many others. This is also a good protection against cheaters.
It's not impossible, they are on the same business so they are into protecting their respective businesses, though they are competitors but when it comes to cheaters they are united with that. As the saying that I heard before, when you are a casino, they will love you when you keep losing money but if you keep winning, they will hate you and you are not welcome since you are a threat to their business.
I don't know, but is it also possible for a gambler to be ban in a casino even if he is not cheating because he is always winning?
You yourself wrote that casinos do not like those who constantly win money. And if you think logically, it is almost impossible to constantly win money from the casino in an honest way.
Most likely, such people will also be banned from the casino. The reason may be that their method of permanent winnings is unknown to the security service.