Demonetization is when the platform deems you too controversial to be a money partner with them for their ad clicks. A harmless Australian channel with nature sounds and relaxation music was demonetized by YouTube during the purge of "hate speech" channels in the wake of the Steven Crowder/Vox.com battle. This is not a political channel but it somehow has been tossed into the battle. YouTube revenue is their lone source of income (granted, not the wisest choice but if you live out in remote Australia, you might have few ways to make a buck).