No i don't think this to be true, i haven't seen any glamber claiming he have won poker without any negative bankroll and living off from the poker profit. I don't know what you like to show comparing poker against slot machines 
i don't find any realtion between those two.
i don't find any realtion between those two.So you think the real life poker professionals are just all scams and lies?
Everyone has been lied to?
Poker is a game where bets are against people, not the house.
For example: Some casinos are better than others - maybe you bump into a bunch of drunk guys who literally gamble and don't even try to beat you. In the long run - you always come out positive against these types. Pure gambling is the complete opposite. Yes you have some gamble and luck in poker just like in anything else you do in real life.
Then you get more complex players so you must be better, etc.
You might want to Google.
Being a poker professional doesn't necessarily mean that they're making a living off of it.
There are a few, but I can confidently say that well under 9% (my best guess is <1%) of poker players are able to make a living off of it.
A lot of the more known poker pros are staked and are actually in make-up.
i agree with dogedigital opinion/argument about a poker players who able to make a living from poker table, very less people can do it. i my self is a bad poker player who never earn good money from this game.
Yup like anything else in life!
Very funny this guy though - you can't be a pro unless you are living from it - the definition of a professional.
