Is there a legal term or argument against behavioral modification through laws?
For example, the criminalization of marijuana was justified in part because its use correlated with that of other, harder drugs, and maybe some other behavior that was considered undesirable.
Another example is switchblades, which were mostly made illegal because they were associated with street gangs, not because they themselves are something particularly wicked. If they were simply a gimmick knife that had no more historical or mental association with crime than any other knife, nobody would have cared.
This seems really inappropriate and unethical to the point where they should be some type of legal theory against it, but I've never seen anything like that.