Rostam, prove your theory mathematically. I'll
bet you can't as long as the game has odds stacked in the house's favor, which the all do with the few noted exceptions above and maybe 2-3 more in rare cases where the game is slightly modified. You lose just as much as you win with your method. You break even. Let's look at it with 50% odds, shall we? Consider yourself to be betting on simple coin flips. Give yourself a $1024 limit for this.
Say you bet $1 at first and lose. You're down $1.
Then you bet $2 and win. You're up $1.
Then you bet $4 and lose. You're down $3.
Then you bet $8 and win. You're up $5.
Then you bet $16 and lose. You're down $11.
Then you bet $32 and win. You're up $21.
Then you bet $64 and lose. You're down $43.
Then you bet $128 and win. You're up $85.
Then you bet $256 and lose. You're down $171.
Then you bet $512 and win. You're up $341.
Then you bet $1024 and lose. You're down $683.
Over a long period of time you break even. Sure you can walk away when you're up, but the next time you walk away when you're down. Over the long run you simply break even. The casino knows this and shifts the odds in its favor be a bit. It doesn't even have to be by much. You'd be amazed at how much things add up when you win just 51% of the time.
Those that play casino games for a living don't gamble either, just so you know. The odds are in their favor.
The house wins because the odds are in their favor on the vast majority of games in the house. And for those 2-3 that this isn't the case, they either toss you out for counting cards or count on the thousands of people who don't know how to play the odds properly to put them in their favor.