The problem with banning it all together is that there are hundreds of critical applications for which they’re really is no alternative for PTFE, PCTFE and various derivative products.

Could we get by without Teflon pans, stain resistant fabric sprays, and consumer spray on dry lubricant… Sure. I’d really like them to take it out of food packaging. That would be nice.

But the world needs to interact with incredibly strong acids, and cryogenic temperatures and all sorts of other things for which human lives depend on having an absurdly inert material.