In my opinion, the gambling tax for casinos should be the same as the regular tax from salary. So in the case of how the casino earned, it accounts for it and pays the tax. If casion has lost, pay nothing, just like every citizen.
You don't know how taxation works? Casinos are big business and you want them to pay tax the same as an individual employed person?
Are you fine that casino operators operated by rich businessmen will just pay a few cents of tax to the government while another small business operated by a small group or individuals is complying with the set tax for them?
Even we will replace the word "salary" with "income", casinos' tax should not be the same as other businesses.
High taxes for casinos are bad for players because casinos have to increase the chance of their own winning, which makes it for players less likely to win. Consequently, it is the players who lose the most.
Where did you get that idea?