Yes, basically all casinos earn such an immense amount of money that even a single loss like that is almost a blip in their radar.
People usually think only about their own experiences, but if you simply realize about the amount of people who gamble, and the fact that pretty much the vast majority of them are losing money to the casinos, you quickly realize how much money the casinos make.
It's no surprise that many countries require a special license to open a casino, because it's quite literally a money making machine.
It is correct that all the casino finally can be winner for various reasons. As there is no way to beat casino there is no way to make losers those casinos. The percentage of winning people is too low considering the lossing people who take part on online gambling casino.
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.