The problem is that it's a political trap. Any attempt to roll back these laws will result in some political opponent charging them with being soft on drugs, crime, terrorism, etc. And America now has a legislature that can't get anything done anyway, because there are a large number of people in office who make their name by blocking everything, including initiatives originally designed by their own party.
So the war on drugs, a bipartisan effort that resulted from this kind of rhetoric, has now created the largest incarceration rate since Stalinist Russia, militarized police that look and act like an occupying army, and now, the right to take whatever you have without justification. Law enforcement is simply taking advantage of a paralyzed government to do whatever they like, because you can't bring them to task. Instead of getting the job done, elected representatives are spending all their time bickering about faux issues like Benghazi, Affordable Health Care, etc, while the real issues which should have libertarians and Tea Partiers screeching just get ignored.
Hmmm... it's almost as if they actually don't care after all...