I agree with you complety, theres so much going on that we have know idea about, I belive they are among us, as humans and other things but from my pesional exspince.
They always watch us, some controlled humans watch for them, I think they fear some of us. I dont know why.
Just my little interjection. Whatever form the aliens are described as, they do not seem to have the dexterity to build their ships/machines. So are we to accept that their “spaceships “ are grown, or built for them by a sort of worker class who,do posess 4 fingers and a thumb?