Well, Dupont is not all evil. Can you imagine a world without plastics? And we have had many good uses of teflon, from cookware linings, to speaker cones, to artificial joint linings, to catheter tube linings, etc. We would be living in the chemical dark ages without Dupont.
And can you imagine the weight of gallon sized milk glass bottles?
Just use plastics judiciously. Plastics of any kind will melt at high enough temperatures. So purchase metal cookware and kitchen appliances if you can. That means no more plastic coffee makers (all present day coffee makers are made of those cheap plastic, I can't imagine how much melted plastic gets into your coffee every morning), no more plastic food storage containers in the microwave, no more plastic spatulas, no more disposable plastic forks/knifes/spoons for your take-out foods, no more plastic containers for your Chinese take-out hot and sour soup, etc.
Anyway, anything that generates heat better be in contact with metal, ceramic, glass, wood, or bamboo. Heat will melt plastic, regardless of what the manufacturer says.