It's not the first time nor is it the last time that someone is going to be saying absurd things about bitcoin, both in the bear and bull directions. It's not even the first time that someone says that bitcoin will go to zero and die, as a matter of fact.
You cannot have a means of payment that is based on secrecy when youre trying to create a transparent banking system. If you open up a hole like bitcoin then all the nefarious activity will go through that hole, and no government can allow that.
Banks are more secretive, and facilitate money laundering, corruption, etc. Does that mean that fiat currency is fault? No. Nefarious activity is a byproduct of every single currency, not just bitcoin.
The government can try to restrict access to bitcoin, which is already happening, but bitcoin will continue to be an alternative store of value to fiat which is proving to have demand. And this demand will definitely keep bitcoin from falling to such lows, imo.