^
Losing money is always unpleasant, but I completely agree with you that a responsible gambler should consider and accept the possibility of defeat before the start of the gambling session, rather than foaming at the mouth and proving that the casino is to blame for his loss. I have seen such people many times, and I was really amazed at how deeply convinced they were that they were not to blame for losing all their money. I would not recommend such people to gamble at all, because it is partly because of such people that society has a not very good opinion of gambling.
There will be always stigma when comes to gambling and gamblers, that is not going to change as there will be always people who misrepresents the majority of gamblers how have common sense and understand what this whole game is about in order for someone to win, others have to lose.
Also, I have the personal theory those people who cannot accept the defeat and their bad luck during a gambling session and ultimately end up blaming the casino for their losses have a very distorted perception of gambling and betting, probably because they have been watching people winning big on social media during several months or weeks before they tried themselves to get money from gambling. From the very beginning, then they step in the casino, they already have high expectations and they explode when they are not met in reality.
Those people are not suitable to be gamblers and should invest their money in other hobbies and ways to kill time, it would make a big favor
to reducing the stigma and stereotypes society has on gamblers.