@ben Except the whole reason we started producing it in the first place is because it uses byproducts of oil refining that we had previously considered waste (hence why plastic is so cheap and plentiful).
So, if we "reduce plastic production", that just means we'll be dumping its precursor chemicals, which is just as bad (or in some cases worse) for the environment.
Really, the only way to cut back on plastic production is to end our dependence on the entire category of petroleum products.