The intended use of a hard drug guns is a threat to those around the user, therefore a violation of their rights.
The intended use of a hard drug religion is a threat to those around the user, therefore a violation of their rights.
The intended use of a hard drug speech is a threat to those around the user, therefore a violation of their rights.
All human activities have societal consequences. The implication that all activities are "essential liberties" is juvenile nonsense.
The "right" to use crack doesn't equal the right to keep and bear arms.
"They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety." --Benjamin Franklin
Franklin wasn't a simpleton.