If the gambler isn’t responsible for his losses than who is? I think the whole idea of trying to place blame in the first place is a bit misguided. You’re paying for entertainment, so if you are looking to blame someone for you not being happy with your purchase than I guess you could blame the casino for not being entertaining enough, but it would be better to just find a form of entertainment you do enjoy.
All casino games are entertaining, so you can’t blame them for the reason that you aren’t entertained at all. Except if your own concept for being entertaining is that you should also be in profits, then you are looking it the wrong way. Casino is a business, the more losses the players obtained, the more profitable the house will be.
It’s good to say that casinos are bound to make us lose, winning is just a bonus. So any gambler shouldn’t be blaming the casino for their losses. In fact, no one should be blamed, except if the gambler itself does not clearly understand the concept of gambling and how it works.