Another way to bring down harmful industry is to quit your job.
Industries are not always looking for ways to save energy, or even money. Some look for ways to lobby more, get more bailouts and handouts, ways to spin and manipulate public opinion, ways to silence critics, anything but actually do better. It's not much different from individual people being jerks that you've described personal experiences of often in your amusing podcasts--they've just scaled up the jerkery. But they can only do their job if a lot of people cooperate.
Again, quitting your job.
Also, heating with
wood and building your house with
trees or
straw bales means not needing industry, for your heat, for your electricity, for your food--that takes a chunk out of the enemies Derrick Jensen names.