Could a ban on plastic bags be fatal?
sfgate.com
sfgate.com
We threw out plastic bags (and found them convenient in doing so) precisely because they were presumed contaminated.
The conspiracy theorist in me would love to find a connection between these Wharton profs and that PR Agency.
1. Extra drinking water usage in a state with known water supply issues. 2. More detergent residue in the ground and oceans. 3. Electricity usage to run the washer.
I'd suggest these come close to outweighing the plastic bag negatives.
There are a few (helpful) signals that people send, when they've made an emotional decision and are merely trying to justify it after-the-fact. Using emotionally-charged cliches and strawmen ("nanny state") is a large flashing sign of that type.
You really shouldn't expect such a position to have any logical or philosophical consistency. Nor should you expect it to be receptive to data. If one of their pet justifications is refuted, the conclusion will remain iron-clad; they'll simply fish around for a new justification.