Nobody, including Conservatives, really wants to follow the Constitution. Two words: Drug War. Can’t have that if you follow the existing Constitution.
How about 2 more words..
patriot act.....
True. No Federal Drug War.
You could, however, have 50 Drug Wars going on at the State level.
Way too many libertarians don't realize that the Constitution is not a libertarian document. It's a document that established a federal government with limited powers.
State governments had almost no restrictions put onto them by the Constitution. Initially, even the Bill of Rights did not apply to the states, which could and did interfere with freedom of speech and press, for instance.