So then... Legislating from the bench is OK when it goes the way you want?
The Controlled Substances Act of 1970 is Congressional legislation.
The Supremacy Clause (Article VI, Section 2) of the U.S. Constitution says, in effect, that federal law trumps state law. Should legislators in the states that allow marijuana be arrested and tried for sedition against the U.S. government?
Legislating what, exactly?
An employer has the right to fire it's employees. If the company has a "no marijuana" policy, it can enforce that. It doesn't need any legislation of any kind to do so.