I am in no way using this definition right now, I am using the definition you provided (established businesses) and I generally use it interchangeably with "licensed", because to operate you need at least a license.

So it's not a tautology.

There are enough illegitimate online casinos to create a problem for the whole industry.

Incorrect. Also creating a problem for is not defining the industry itself. There are phishing bank sites to create a problem for the banking industry, but only an idiot would answer "they steal your identity/card details" to the question "why are online banks bad".

They don't have enough users so they need to squeeze their regular punters harder.

Incorrect. You forgot to address "how". I will also add another item to the "you have no idea what you are talking about". Players losing is a sure way to lose even more customers. In fact if you knew something about the industry you would know that new companies operate on much lower margins that established ones. Bet365 might operate on a 7-9% margin, a new company operates on 1,2,3%. The idea that squeezing more existing customers, besides being technically impossible, is absurd. It's a huge business risk (you lose your license and then you will have 0 customers).

Even your beloved "legitimate" casinos do "rig" games by offering different odds at different times to different people.

First, I don't like casinos, despite having worked for one, I have played on less sites than you did. I like even less bullshit though, hence my pleasure in clearing the world from yours. Second, that is not rigging at all. You know it, I know it, it is absolutely not what you meant, and I am embarrassed for you for trying to use this terrible rethorical trick to now bend the word rigging. Rigging means that you expect the odds to win are X but instead behind the scene are Y (<X). Offering odds first of all is not a casino thing, it's a sportsbook thing, and second of all is transparent to the user. Finally, odds obviously change over time, as estimated probability does...

Listen, you are just a guy on the internet with a big mouth and a family supply of bad faith. I showed you multiple times that your claim are bullshit and that much smarter people than you took care of the problems you claim affect casinos (rigged games and money laundering).

You failed to provide any argument from any of your claims and now you proved to argue in bad faith. As promised, I will make you a favour and block you, so you don't have to keep embarrassing yourself. Take this as a chance to reflect on maybe not arguing on something you don't understand fully, and maybe to learn from someone who knows more than you, as I try to do in the many occasions where I make mistakes or know little about something. Your claim at the moment is false. It's a conspiracy theory that you repeat and might believe, but it's false. Deal with it. You can use the very real and many reasons to consider casinos bad, do that.