It’s not that they aren’t efficient it’s the idea of guilt and responsibility being laid on the end consumer as opposed to corps who have the capital to invest in research to develop cleaner and more efficient technologies as opposed to runaway greed, CEO bonuses, stock kickbacks, etc. This is again not saying end consumers are not responsible at all, it’s more stating that corps are in a much better position to do much more, whereas end consumers can only do so much.