I thought the same way about casinos a couple of years ago, but things have changed. You can't win it all because of the RTP level. And casinos know this. That's why most of those gambling sites patiently wait for you to lose money there. They don't need to scam you. Moreover, I have played in an online casino that was recommended by one of my friends that (I realized this later on this forum) was a kind of a blacklisted one for "scamming" people. I managed to withdraw all my winnings from there even before I knew that that was a "scam" casino. My verdict, I don't think that there are "scam" casinos. Those are stories that are told by those guys who lost their money for some reason or have seen their accounts blocked for breaking some casino rules. We often start playing by simply checking the checkbox with casino policies and T&Cs without giving even a couple of minutes to go through the document and to see what we are allowed to do there and what is restricted. With this in mind, yes, many casinos do aggressive marketing. Many affiliates do aggressive marketing because this is their business. If you start playing at a particular casino, you should understand that your longterm odds are negative.
I am not sure about that because I do not get a scam by the casinos and if I lose in a game, I consider that is because of my fault and not the casino mistake.
If people complain about the casino scamming them, they need to look at their history and check if they are breaking the casino rules or they are clean enough and then they can ask the casino what is happening to them.
Many people say the casino is a scam because of themselves. I would call that because they feel greedy after winning some money and want more wins or create a new account to earn money through the casino affiliate system.
If you succeed in withdrawing all of the win money, you are lucky and I am sure you do not do something that breaks the rules.