The Government outlawed all the legit crimes (like robbery and non-consensual fisting) a long time ago, so why the fuck are they still passing laws?... Well, because most laws aren't about you, they're about paying off campaign contributors. When those contributors happen to be gigantic companies, the “pay off laws” are usually designed to protect them from competition. Successful companies obviously don't want to compete, they hate the free market. It's the little guy, the small businessman who needs a free market.
Example: Marijuana's probably bad for you, but so is shoving pine cones up your ass. The reason marijuana’s illegal and pine cones aren't, is because you can't use pine cones to make paper... But in the 1930’s a new machine called a “decorticator” made it profitable to produce paper from hemp. So profitable that Popular Mechanics called hemp the “New Billion-Dollar Crop” and reported "10,000 acres devoted to hemp will produce as much paper as 40,000 acres of average [forest] pulp land." Well a lot of people, including newspaper tycoon William Randolph Hearst, owned a shit load of timberland, and because people don't like it when new technology comes along and fucks up their business, Hearst started calling hemp marijuana, and launched a newspaper campaign to ban his competition. It worked, and even though the American Medical Association was against banning marijuana (seriously), in 1937 it was outlawed. (Sounds a lot like GE, NBC, "Green Week", and the incandescent light bulb doesn't it?)
So thanks to people like Hearst, marijuana was outlawed to prevent competition from hemp. Naturally, marijuana growers just moved their crops inside to hide them from the Government. However, there's a reason why you don't grow plants inside, you need artificial light, and a lot of it. That requires a shit-load of electricity. How much? Well this week a study by the Lawrence Berkeley National Laboratory found that 1% of all the electricity used in America goes to power the lights used for growing marijuana indoors. Thanks to the Government, your paper costs more, your electricity costs more, and your taxes are higher (to fund the “War on Hemp Paper”)
Goddamnit... illegal does not mean "unavailable." Illegal doesn't mean "doesn't happen". Illegal doesn't mean "The world will now be the way we wish it were". That kind of naive thinking is perpetually getting us fucked-over by politicians who are just trying to pass laws that benefit their contributors. Making X illegal is simply a threat, "If you do X, the Government will come to your house, kick your door in, and drag you off to prison." There's no magic involved, all the rules of the universe still fucking apply. So from now on, every time a law’s proposed in Congress, ask yourself "Who's the 'Hearst' for this law? Who’s this law paying off?"