They're often counterproductive. People feel accomplished, and finished with the half-measures and they often don't bother investigating the results or the ongoing requirements.
The evidence is that the major sources of plastic pollution were not put under further regulation subsequent to the regulation of this minor source of plastic pollution, even though the threat they present has not diminished.
It's an article of faith for people in the libertarian climate change denial community, because they get funded by the people who sell the natural gas that is used to make them: