Who is the "we" with access to everyone's video recording footage? I don't have access to anyone's camera footage. If I ask a big organization with lots of cameras for unfettered access to their camera footage they will probably tell me to take a long walk off a short pier.
If a large military organization has suspicious footage of unidentified objects, they probably don't share it to every outsider who asks for it.
Now, some organizations claim to have UFO footage, but I have little reason to take their claims at face value. Example:
https://en.wikipedia.org/wiki/Pentagon_UFO_videos
> we would have have a lot of footage of them like we have for everything else that's actually real.
I don't have a lot of footage of narco-submarines or drug cartel headquarters. Does that mean they don't exist?
Does something stop being real when cameras stop being pointed at it?