In order to believe this you have to believe two impossible things.

1. You can blow up buildings in one of the most populated areas in the US, with the world's heightened attention on those buildings (after the first plane), and hundreds of people who saw and heard the planes just refused to give their testimony about witnessing the plane(s)? Pretending everyone in NYC is CIA is a lame excuse.

2. The planes are visible in the live broadcast from many different news feeds and amateur videos. This was before the prevalence of cell phone cameras. You would have to believe that the planes were overlayed graphically onto the live broadcasting feeds and seamlessly edited into the amateur footage within the same time span. This was in 2001, and the idea of live camera tracking with graphical overlays was only just being pioneered by Weta Digital for Lord of the Rings, and was still very much in its infancy and only available in draft rendering quality. Weta really improved this tech extensively for the first Avatar film in 2009, and even then, the render quality was only a draft preview. The amount of coordination and rehearsal it would take to sync the plane's collision with the detonation of the explosives, for MULTIPLE video feeds without any obvious errors is staggering.

I come from a background in visual effects. I've probably seen a lot of the same poorly-edited YouTube documentaries you have. Don't be deceived. The hologram/graphic overlay theories are equally ridiculous in my view, and don't add anything significant to the overall 911 conspiracy. The tech just isn't where it would need to be to pull it off convincingly, and still isn't. Focus on building seven and the missing two trillion.