Most people who claimed they were scammed through Bitcoin are either ignorant or untruthful. Many scammers promote altcoins deceiving people that it is Bitcoin. Many people don't know the difference between Bitcoin and altcoins, so they are easily scammed. I don't see how anyone will be scammed by buying and hodling Bitcoin in the right wallet.
Another set of people who claim that they were scammed by Bitcoin are those who thought that investing in Bitcoin was a get-rich-quick scheme. They thought that it would give them instant profit within a short period. When it doesn't happen they sell their coins at lower than the cost price and claim that they have been scammed.
The government and Bitcoin haters will always give any criminal activities in the crypto industry wide publicity. But fiat scam is the highest in the financial industry.
The US Treasury in its 2022 National Money Laundering Risk Assessment highlights how fiat and traditional financial activities continue to be substantially higher than virtual asset use to perpetrate illicit activities.
Chainalysis also observed that scams related to crypto dropped from $10.9 billion to $5.9 billion in 2022.
I feel like this being an "issue" is personal though. While it is probably true that it has been this much money, it's also a reality that we are talking about something that will not be all that easy to handle, and can't be considered as a good deal at all. We are talking about a thing where it is taking us a long time to realize that we are giving our money ourselves, they are not taking it. By that, I mean is this; if you keep your money in your own wallet, nobody will come in and take it.
So, what are the ways that you can be "scammed", it is literally only if you give your money to someone, a project, a person, a website, whatever it is and then they do not give it back and steal it from you. That is how the scam works in the crypto world, meaning if you do not give your money to anyone, then you are going to be fine and you will not face any issues at all.