Everyone indeed looses on the long run and this is because gambling is not made for profit, its just to let you enjoy it and try out your luck sometimes.
I think that you are right about that the most do and that gambling is for fun and not to make money because only some people have this much luck.
Not everyone looses in the long run i know there are some who can really make it to win after playing that long i have a friend who is addicted to gambling and he always spent 15-24 hours playing it without using bots and he can make a good profit. He always says that just enjoy the game what ever the result it don't just depend on your luck.