of course the problem is not on blockchain or bitcoin, but in groups or individuals who abuse it, all we can do for crime, all currencies in all countries of the world including dollars can also be used for criminal acts, the problem is the person, not the tool or goods used, we do hear some people using bitcoin for illegal actions like money laundering and drugs, but many positive things we can do with bitcoin and blockchain system
True, what happens is that governments and the media want to play with the emotions of people, they want to scare them, they want that the first thing that comes to mind when people hear about bitcoin or cryptocurrencies is about crimes and bad things, and to a certain point they have been successful and that is why the adoption of bitcoin has not been as fast as we had expected.