Who said gambling will always be loss in future? There are both way returns like profit/loss and you need to be sensible gambler to balance your situation well and that's it.If you are not professional then you can enjoy with your small bets only.
You just don't go beyond your limits and keep up your budget if you don't want to end up in worse situation and play in well manner.
Are there really a lot of gamblers that end up in profit ? I doubt that as in the end, the house always wins. I know there will be some good days where you have a lot of luck but most of the times, if you keep playing, you will end up with a loss.
this is the harsh reality, unfortunately the only people who at the end of every month make a profit are the owners of the casino and the employees of the casinos and some people who are customers, I say this because I have seen people who in sports betting make bets with odds from @10.00, they choose a multi bet and in the parlay there are more than 5 games and they manage to hit all games, with that it is possible for them to make a profit because at the end of the day when you do the math:
example: the guy takes 1$ and bets on a multi of odds of 10.00 and gets 10$, even if he loses 5 games later, just hit another odd bet of 10.00 for him to have 15$ profit and with time the guy stays with a lot of profit, but few people can do that