Yes. He’s asking a question? Why is an online casino bad?
If the casino follows all rules and regulations, then that is not bad.
If talking about sites that steal your money and don’t pay out when you “win”, then yes, that is bad, and a scam. But that’s not an online casino…that’s a scam. And also incredibly rare.
An online casino can make a shit ton of money by just following the rules. Why would they need to break the rules?