It would be very difficult for AI to destroy an online casino games like poker rather many casino site would eveh use it to fight against gamblers using such act to win the game, the game would seize to be interesting and the casino site could lose many customers thereby making then to lose more money, since it's a business no business owner would sit back and watch their business undergo threat of losing money without working hard or doing anything to fight against those threats that could cause big set back to such business, therefore they'll also come up with technology that would eradicate those bots that many gamblers would use to cheat in the game.
Almost all popular poker rooms track users' pc activity while they play. Personally, I was recently convinced of this when one of the poker rooms sent me a warning message that they had detected a virtual machine on my PC. I do have a virtual machine installed(ubuntu) via virtual box, but they also noted that I haven't specifically violated their rules. They only warned that it's not allowed to use virtual machines while playing poker. I'm just saying that if someone decides to use ai-bots or some other banned program to play poker, it is very likely that the poker rooms will be able to trace it.