Throwing someone in a cage for not following your admittedly not very effective "cultural marker" is evil. If you want to use public shaming to convince restaurants to use paper straws, fine, but please leave it at that.
Here (Australia) it was implemented as a civil fine and I assumed it would be similar elsewhere. But if that were the case where you live I’d agree that’s awful.
If that’s not true then you’ve just made a straw man argument.
Hell, even if there _was_ a place where they locked someone up for providing plastic straws to customers I’d argue that the issue is that particular law. Not the broader issue of legal ‘nudges’ to foster positive cultural changes.
The fundamentalist faith that is evangelical progressivism allows nothing and no one to fall outside its purview. Every aspect of everyone's life must submit to its edicts.
Government power can be exercised without jailtime, but you seem to take everything to the logical extreme.