Then at some point, you have to explain to yourself . . .
what these “good, nice, wonderful ET’s . . .
who, incidentally . . . mutilate humans just like they do cattle—with the human alive without anesthetic as long as possible . . . force sex on humans . . . take babies from mothers’ wombs at the end of the first trimester . . . etc. etc. etc.
. . . at some point, I hope you’d see the need to explain to yourself . . .
what these WONDERFULLY NICE ET’s are doing helping satan set up and maintain a very tyrannical, ruthless, demonized world government predicted in Scripture . . . and along the way . . . declaring that they bio-engineered Jesus (and staged his miracles with technology) and all other religious figures of history for social engineering purposes etc. etc.
Paul said that if an angel from Heaven came preaching any other Gospel, he must be considered accursed.
That verse does NOT take knowledge of Greek to understand quite plainly.
So, you think those are the "good ones"? I take that bunch as the ET equivalent to Muslims or something. There are very rotton humans who mulilate other humans using various sorts of instruments. Those folks aren't demons or anything of the supernatural sort. It follows that the same traits humans exhibit are sure to be exhibited by ET races. Surely you follow that parallel.
Now, for Genesis: It says, "The sons of God"..." That does not say "angels", or any of the other terms you applied. Jesus is referred to in exactly the same way. This tells me that there is a lot more to the story that isn't in the Bible. The Bible isn't a Universal Cookbook of The Universe". It is dedicated to the mission of Christ. People who read outside of that are in for some surprises.