Let the government charge for the protection racket services it already provides.
Among these: charging for the protection services already provided to intellectual property right holders; imposing a special tax on government created monopolies and oligopolies such as those of the credit rating agencies; and finally a big special tax on all bonuses derived from capitalizing all those splendid arbitrage opportunities that the financial regulators provide.
Alternatively of course, and like what you seem suggesting, is to get out of protection racket altogether so that much of the illicit and informal economies that most probably are still growing at healthy rates, can join the rest of the economy and be taxed as all of us.
What does not seem logical though is to remain in the wishy-washy middle ground.