In the LA Times, Hanna Liebman Dershowitz points out the stupidity of not changing X because X is "the law." The case of interest in California is legalizing marijuana. Federal and state authorities annually arrest more than 800,000 people for possessing marijuana. This is an immense and destructive waste of government resources. Liebman Dershowitz argues that California legalization would leave it to the feds to justify this atrocious policy of criminalizing marijuana (though not beer or tobacco - - I would add psycho-active prescription drugs):

Voter approval of Proposition 19 would shift to the feds the responsibility and burden of justifying marijuana prohibition in the first place. Now, the Washingtonians who have never questioned decades of anti-pot propaganda can explain to the people of California why we cannot be trusted to determine our state's marijuana policies. Let them endorse the prohibition laws' usefulness as a tool of oppressing minorities. Let them celebrate how minor marijuana violations cost people their jobs, their housing, custody of their kids, and entrap them permanently in vast criminal justice databases. Let them justify the utter hypocrisy of the legal treatment of alcohol and tobacco, as compared with the illegal treatment of marijuana. Let them tell us how many more people will have to be prosecuted and punished before marijuana is eradicated, how much that will cost, and where the money will come from.