People have reported talking to ghosts and angels for thousands of years too. People's senses and memory is fallible and can lead to misinterpretations and misunderstanding.
> 2) Aircraft can't make 90 degree turns or descend from 80,000 feet to the deck approximately instantly.
You are assuming that their reports that the objects actually made these movements are indeed correct perceptions of the movements seen.
> 3) Groups of extremely highly trained military pilots have seen them, and the video and IR data has been released from these encounters. You can't make 4 people in 2 aircraft hallucinate at the same time, and fool all the instrumentation on them (radar, IR...) and also fool the battlespace radars on the cruisers directing them. And if you could, that too would be kind of interesting to look at whatever that is.
A lot of conflation going on here. The Nimitz incident did involve 4(?) people, but not at the same time. The radar technician (radar data has not been released) did report seeing multiple objects on the radar, but not much else about them such as the rapid, physics-defying movements reported by the Fravor the pilot who reportedly saw an object with his own eyes. The IR video captured by another pilot also does have reasonable explanations (even including the on-screen display sensor readings) that counteract the claims that the object was moving as fast as they thought it was at the time, or as the video might make it seem.