These large corporations, controlled by a relatively small number of _people_ have a disproportionate and coordinated impact on the environment that outstrips anything the average person can do.
They need to be held accountable, like we have done to other polluters and entities that have threatened public safety and security in our communities and society.
I don't know if this particular effort is the right approach, but I sure am sick of naive people pointing the finger at the average person saying they need to be personally responsible for fixing problems created by large corporations.
Edit: not saying the average person should do nothing, but it's literally the least impactful thing that we can do. Corporations and sources of pollution need to be made accountable first. Everything else is just noise.