[tash9]

But the volume of compostable material is small compared to the overall trash volume, right?

Aren't we talking about a negligible quantity relative to amount of effort and (potentially) negative sentiment amongst swing voters?

[OkayPhysicist]

I don't think so. Ever since my household started putting food waste in the ward waste bin instead of the trash bin, our trash bin has been mostly empty on any given week. A few scraps of single-use plastics that can't be recycled,

Of course, that's assuming that your recycling isn't also going into the landfill, which isn't a great assumption.