I completely agree with your assessment, something does feel off about the UAP disclosures. Randomnumbers has a good take on this - very plausible. Personally, I think that the “little green men” scenario is a deception and that we’re dealing with a very old elder race that has decided on deception instead of a frontal assault in order to rule over us humans.

May I suggest a two books that addresses some of your questions? For the “little green men” -Lights In the Sky & Little Green Men: A Rational Christian Look at UFOs and Extraterrestrials

For the God question — The Creator and the Cosmos: How the Latest Scientific Discoveries Reveal God

Both written by Hugh Ross who is an astronomer and a Christian, just so you’ll know his perspective.