Even if that state is just straight up burning all the tax income from single-use plastic bags, by taxing them you incentivize consumers and distributors towards untaxed, ideally more sustainable alternatives, like single use paper bags or robust multi-use bags.
> Our city just banned chain stores from giving out plastic bags under 4 mils thick, and stores now give out paper and sell re-usable bags
I don't see how this is not a massive win? Paper bags are significantly more sustainable, and multi-use bags are more durable and thrown aways less simply from being more expensive alone.
People are much more wasteful with things they didn't pay for, regardless of "inherent" value.