We've seen this hundreds of times throughout history. The Salem Witch Trials come to mind. Conspiracy theories need to burn their way through the population, reaching a crescendo until saner minds take sway.
These are the natural ebbs and flows of popular opinion. It's seldom rational even without conspiracy theories being involved. Trying to control this back-and-forth by shutting down one side of the conversation is just going to increase the pressure until the natural cycle continues.
I think _maybe_ YT has some sort of long-game in mind where they come out with a business model, but this doesn't appear to end well for them or any of us. Treating complex and sometimes chaotic systems as if they were simple ones doesn't make for good results. If you think the question is whether or not the claims are true, you're not even close to the critical conversation society needs to have right now.