Admittedly I didn't watch the entire video, but I think this is pretty stupid. There's loads of independently recorded angles of this happening (here's 50 of them), and one of the largest cities on the planet full of witnesses.
Even if the videos shown we're "forged," how do you know that an "actual" plane wouldn't do exactly as it did in the video? Lots of other planes have flown into other buildings, and the planes enter the building without crumpling. I'm sure you can do your own physics simulation rather than trying to abuse intuition but many other people have done it already (here, here, here).