But don't you think that in reality what casinos want to take from gamblers is just a small part of the money they gamble with, not all those money? We can even evaluate how big that part is since it is more or less equal to the house edge. It's 1% for PD, and it can be more than 10% for some land based casinos, but, I think, it's less than 10% on average
You seem to miss a very important factor here
Namely, that gambling is not trading, with the implication being that once you lose your balance, there is no way back. And this is what happens, sooner or later, especially when you are going for big wins. But once you are out of money, it is a gameover for you. Indeed, you can deposit more, and then even more, but it is just a matter of time till you lose again, and then again. And while it may look like 10% on average, this will only be the case when you bet small, i.e. with a tiny percentage of your account balance. But then you can't win big
I agree that this is what happens to most of the gamblers, and that the main reason for that is the house edge. But it doesn't happen to all of the gamblers around. Although I think that many of successful gambling stories are fake, I believe some of them can be true. And it's not that surprising when several people, from 1.6 billion gamblers, have been winning consistently for years, while it's one in a hundred million chance of that happening.(sorry, I don't know what is the real chance of it)
I'm running some tests now and will report here when I'm done (it will take a while)
Sorry, I forgot to mention that, while making those 10k bets, I was losing more than 200 sats(let's call them "sats" for the convenience, ok?) at some point, somewhere between 2,000 and 3,000 bets. (maybe it can be important to know for your tests. Can't wait for the results, btw).