Farmers will become obsolete only when you pansy-ass fuckheads take over
I'm not planning on eating anything plastic. Gross.
You mean like Soylent Green?
No. Reportedly though, we are already inadvertently ingesting plenty of "microplastics". While it is unknown how much or if that is hurting us, ingesting plastic is definitely harming other creatures, especially marine life.
That is why I think it's nothing but good, that there are companies working on perfecting far more sustainable and biodegradable plastic than is currently in use.