Things are much worse now than they were pre-Prohibition. We have the awful three-tier system which means higher prices and less choice for consumers. Not to mention the accumulated brewing knowledge that was lost by Prohibition + a 45 year ban on homebrewing. It's only in the past 20 or so years that we've begun to undo the damage, and we're still worse off.

I would pick a different example. The 21st Amendment rescinded much of the power 18th Amendment gave, but then retained: "The transportation or importation into any State, Territory, or possession of the United States for delivery or use therein of intoxicating liquors, in violation of the laws thereof, is hereby prohibited."

So, perfect example of the ratchet effect: go forward, but then not all the way back. Okay, okay, ratchets don't allow any backward movement, but close enough.