There are many aspects to the UAP phenomenon. I think this is part of why the mystery is hard to nail down.

That there are physical beings/crafts from inner earth that fly around. (Probably typically known as demons)(probably the grays)

There are beings/crafts from alternate dimensions that fly around. ( also probably typically known as angels and demons) (these other dimensions could be what has been known as heaven and hell)

I also want to believe that there are actual extraterrestrials from other planets/solar systems, but they probably constitute 4% or less of the UAP phenomenon. (They are probably human like and typically called Nordics.)

I believe it could be possible that some of these ships/beings are time travelers from the future (and maybe the past). Probably another 1% of uap phenomenon, if at all.

Also! I believe that now there are probably reversed engineered crafts flying around.

So, inner earth beings, time travelers, extradimensional, extraterrestrial, US black projects. Did i miss anything?

Imo, 35% are interdimensional, 30% are from inner earth(probably hell), 10% are US black projects, 4% actual extraterrestrials, and 1% time travelers. And 10% unknown, gotta include “unknown here”