Since the casino has house edge, the casino will definitely benefit in the long run. Even if the gambler wins occasionally during the game, the gambler is confused and thinks that he can beat the casino. This kind of thinking is completely absurd. A gambler is individually conducting gambling, while the casino is working with all its customers. This means that there will be a huge difference between the casino funds and the funds of an ordinary gambler. This kind of thinking is completely absurd. Every casino is designed in such a way they will be profited.
It is correct that the casino has a house edge, but the winning person's is too little compared to the losers. In this case, the casino would be able to make a profit even if there would have no house edge. And I consider the house edge would be the additional profit of them, and the main profit would be the profit from the losers of the casino.