We won't dispassionately investigate or rationally debate which drugs do what damage and whether or how much of that damage is the result of criminalization. We'd rather work ourselves into a screaming fit of puritanism and then go home and take a pill.
P. J. O'Rourke (2007). “Parliament of Whores: A Lone Humorist Attempts to Explain the Entire U.S. Government”, p.119, Grove/Atlantic, Inc.