https://www.facebook.com/constancehubbs/posts/10160037512144338
With regard to plastics, I doubt that the promise of recycling significantly increased the market for petroleum-based materials. But even without recycling, separation of refuse streams is a good idea as different materials lend themselves to different methods of disposal. And the price of any product should include a fee paid by the producer to the government to cover the cost of appropriate disposal.
P.S. See also this