One can make an intelligent arguement both ways, but when it comes down to it if there is a choice between a product that can be made by an individual growing a plant (cannabis/hemp) versus a factory making something with petroleum or needing a proprietary seed that requires pesticides......well the decision seems pretty clear for a lot of people; including myself. Since one can make anything petro can make with hemp, then we really need to say good bye to petro.
Good point @mranderson! There are somethings that one could do without all the fancy stuff!