Not really "proof". I've seen plenty of videos of people claiming to be former CIA members etc. spew all sorts of shit, and people see it as proof. You know what one such video was about? Nibiru in 2012. As much as you'd argue with these people, they were adamant they were right and that I was just some lowly "sheep". Well, we all know the result of that.
My point is, someone talking on a video does not back up anything, especially when such a video does not show any links to sources, or any sort of evidence. Even if such a video would have such sources and evidence, I would be skeptical until I looked through it myself and find other sources that back it up. Sadly the only videos that held up with their evidence etc. are videos that usually disprove the conspiracies.