He has a point because cryptocurrency with the current setting could easily be an avenue of hiding fund that could fuel all these bad vices. However, I believe you don't throw away the baby with the bad water. It is high time the government step in and have a measure of control without stopping the freedom we currently enjoy in the world of cryptocurrency.
It will depend on humans action and behavior. Crytocurrency can be use an instrument to kill people but we dont need to generalize . Lots of instruments use to kill people even the word you say .