Gambling and pofit in the same sentence is something you dont here everyday but certain games allow you to make some money like poker, but when its you against the house that should be for fun because it never ends well as the house always wins.
Where did you get the information that the house always win? If that is the case, there shouldn't be a single player playing dice or roulette or the like because they will just end up losing every time they play it.
Of course gambling and earning profit is sometimes out of reach knowing that you couldn't do anything about it you just have to continue playing until you hit the winning bet or something. If it was really profitable, I hope I learn how to do it.
When we play a long run dice or roulette or any other casino games that time most of the time house only win, that is why he said like that. And it is right we can't beat house when we are in the long run game. You want to win your bet then you must play skill games like card games or sports betting here only we can able to make money.