No, money will always be used for crime as long as money and crime exists. People invent new crimes, People invent new money. Crime is the problem, not the money.
I would argue that money that can be used in this context is extremely valuable, as it is beyond the state. This is a very awful situation, and I feel for the victims, but the existence of cryptocurrency is not the problem, any more than cryptography is the problem wrt ransomware.
Tech can be used in many forms. Use it properly. Find and bring those to justice that do not. Don't blame the tools.