Absolutely right that it has to be legislated by Government and enforced. Pricing in externalities is important, but at the very least they should be accounted for/reported on honestly (and also not over-inflated).

Consumerism is complicated, of course. It is often manufactured, one way or another. From lack of viable or convenient alternatives (eg. public transport / safe walking and bicycle paths), to straight up advertising and social pressures, to incentives or requirements from above (eg. job, laws, etc.).