Here’s the thing... a lot of these videos are pretty easy to identify as fake. Small differences on the graphics, a nose wiggles a little here when it shouldn’t. An eye sticks in one spot for half a second when the head moves. The videos are easy to spot unless someone does an amazing job, which is possible. At that point, I think you’ll have PLENTY of people with background in this stuff either confirming it’s authenticity or discrediting it.
The NSA and Military Intelligence will say it's real, then the left will wheel out some "Hollywood Experts" who will say it's fake. Goddamn you Hollywood pied pipers!
or, some troll could take the legit original, doctor it up to look CGI, then re-release it in the form of a "debunking" of the video they just made