I support that idea.
My main gripe with the laissez-faire, pro-legalization libertarian argument is that it is an unreasoned, primarily emotional and self-centered approach
No, it is a principled approach, your sleazy ad hominems notwithstanding.
Dr. Friedman's economic argument for legalization is based on a false assumption that government will save or wisely spend the money that would have gone to a wasteful program.
Programs don't get more wasteful than those whose only "accomplishment" is imprisoning people who violated nobody's rights. I'd rather see the money go to food stamps or WIC; there are good arguments against them, but at least they put food in a belly instead of a person in prison.