Loophole can be small, but when exploited properly, an elephant can walk right through it. And you also chose to ignore the part about unintended consequences..

All it really takes to even consider moving into this direction is to propose a solution to this. "Stop plastic" is not it due to practical reasons. I wouldn't know what a proper solution would be, nor would I have the expertice to recognize one when proposed, but is there even a realistic proposal?