But your example is a law against witches/gays, not a law against _unethical_ witches/gays. I don't think your example is a fair analogy. The first sentence does in fact imply to me that there must've been some number of people thought to be witches/gays/etc
>The fact that such a law existed at all suggests that someone thought it was necessary. There must've been a fair number of unethical witches/gays/drug users/race of people.