One point of view could be that since these billionaires are the ones financially benefitting from the companies, that they should also be the ones paying the true cost of the production.
It’s true that the consumers are consuming, but why are the companies making products without cleaning up after their production? Why are billionaires allowed to extract money out of this and leave the environment in an irreparable state.
Consumers would probably prefer that their money went to the product including all the associated costs of producing it, but consumers don’t get that choice, because the company owners extract the money for themselves.