But weren't those lies perpetuated by mainstream media? Where, if not YouTube, would you find the counter narratives? And wouldn't people who believe the MSM not then considered the YouTube debunking to be "lies" and called for censorship?
Unfortunately as YouTube and the rest of the internet has grown larger, and more consolidated, [1] the positions allowed have narrowed in scope and counter narratives have become less acceptable. While websites with counter narratives (WikiSpooks for example) do exist, they're generally not very visible anymore. I think what you're describing is largely what is happening will happen, and those who present counter narratives will be de-legitimized, including and conflating both those who are genuinely illegitimate (Dr. Gene Ray/time cube) and those who aren't.
The closest alternative I can see is reading media with opposing spin (People's Daily, RT) and yours and hoping together they composite a clearer picture. For example I would not expect to see this [2] headline in a US paper.
