It seems implied to me that he considers the regulation effective. His argument requires it. The cost is also implied: a wholesale ban has a steeper cost than t

It seems implied to me that he considers the regulation effective. His argument requires it. The cost is also implied: a wholesale ban has a steeper cost than the other, less onerous methods of regulation. My comment was merely meant as an explication of his comment since your interpretation of his comment seems unsupported and bizarre. He stated clearly "We need government," but feels a wholesale ban is overkill in this case because for more dangerous things, we don't ban them outright.