Scammers are one part of the problem. Another part is that people consider investing easy money and do not study either technology or industry or projects.
But we all know that this is not so. Investing is a complex business process. This is a huge array of information that you need to study almost every day.
I do not know any investor who would not be at a loss, it is always impossible to make a profit.
This is a market. Who loses money and someone gets it. After all, the profits of successful investors and traders are not taken from the air.