I see nothing in my copy of the constitution that says anything about any governmental entity having any say about what goes in my body.
If you support legalization of all drugs, then don’t do them in public, don’t expect welfare, don’t expect emergency services to come running with narcan.
In Bellingham, WA ( a very Leftwing small city) , Thecity council is discussing a law to ban open drug use in public spaces because of the negative effect it has been having on the local economy.