If you were deliberately trying to design the most arbitrary, painful and pointless tax possible, how would you go about it?

First, you would structure it to inflate the cost of an essential product. Then, you’d create exemptions so vast that only 5% of taxpayers were subject to it. You might even ensure that it hit people only when they were particularly vulnerable—like when they’d lost a job. Finally, you would use it to drive enrollment in entitlements, so that it increased the federal deficit by $338 billion.

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