I don't want a ban, I want a tax on them. There's a strong use for single use plastics - medical goods being one of the important ones that I highly suspect people don't want a ban of. They define these as "necessary" versus "unnecessary" in their poll (ie the 85% figure is specifically for "ban unnecessary single-use plastic products, e.g., shopping bags, cutlery, cups & plates"). Things get murky really quickly when we bucket items. Are single use water bottles bad? Probably. Are all plastic liquid containers bad? Almost certainly not, you wouldn't want to store a corrosive acid that eats through glass in a glass bottle.

So either the option is create a giant database of what is/isn't single use, which then can be gamed in its own way, or simply tax all single-use plastics such that necessary cases still leverage them, but it quickly doesn't become cost-effective for the main offending category of them.