If the creator of that "that 1% how-do-I-do-this video" got $10 or $100 per year for this, then money wasn't the reason for uploading that video - so it means that demonetizing it won't cause such videos to stop being produced, they'll still get created and you (as a viewer) won't even notice the difference.
I find it funny that a lot of people don't seem to think $100 per year would motivate someone to upload a video. A couple of monetized videos can really make it for some folks.
