It's better to keep the good parts and reform the bad parts than to throw the entire baby out completely.

Let's draw a parallel to something more tangible than the cyberwar we don't see. Recently there was a number of high-profile cases where police got into a clash with unarmed civilians, with disastrous results. Should police be shut down completely? Would you be safe in a city with no police? Many cities in the world have places where the police don't go, and those are dangerous places.

NSA and CIA serve important functions. They just need to be properly balanced.