Those casinos will go broke very quickly. You can't depend on the rich to fund casinos. They didn't get rich by being stupid and gambling their money away.
This is so typical of Thai narrow-minded thinking and idiot bureaucrats.
If you're going to have casinos, make them open to all. There should be no entrance fees (a stupid idea that I've never seen before) and no need to prove how much money you have. Casinos are happy to take anyone's money.
If they want Chinese tourists, they'll do what I have stated above. So maybe they shouldn't, lol