I'd like sources for that, a cursory google didn't find anything. With my baseline knowledge, I'd say that it's possible to be a marginally worse shape. But pla

I'd like sources for that, a cursory google didn't find anything. With my baseline knowledge, I'd say that it's possible to be a marginally worse shape. But plastic as a rule doesn't get eaten - it gets buried. The number of animals that were saved by such regulation is very likely minuscule. The opportunity cost of not tacking anything else related to whatever your goal of choice is - that's not minuscule. Even if you ignore the effort to get there, a legislature can pass only a finite number of regulations per time interval. Context and opportunity costs matter.