Most of the time people thinks at aliens like, oh they doesn't exists, maybe far away if they do exist.
Imagine this situation, we are the only living creatures with some advanced intelligence, and an Entire Universe empty. Now what. What would happen if we extinguish for some random reason?
This is the point nobody is caring about. If we extinguish, our planet will just take ahead and animals we had will rule again the world, in the worst case, Earth would die.
Then what happens? An entire almost "infinite" universe... and we are the only creatures, who just extinguished because we are too idiots with useless wars. So, why fear about aliens? we are the aliens ourselves. We are just an human race, maybe 1 of many kinds. It's not the first time someone thinks outside the box and sees or meets aliens in humanoid form or strange shapes.
What about egyptians and their Gods?
Mostly human shape, with different heads, animals or very strange ones.
Now the problem is not if other aliens exists. The problem is, if they have been able to find us(probably yes) and try to create a cultural and historical godness like stuff to make us believe in something more, when we will be prepared to meet the "future" we shouldn't even call it future, what if they are older than us?
As some people theorized with star wars(not a fan of it) that tech they had was way in the past before us, as it could be in the most remote future where another kind of human species remakes the wheel or this kind of technology.
So, what's your thoughs about it? Should we consider the fact there are other kind of aliens similar to us, so humanoid, or we have to think they are all green blobs with some accentual humanoid stuff? We are a very splitted world, where half of it thinks at the war and the other half thinks at making technology progresses. We should all collaborate and not care about what's over us, or things we can't comprehend, because it won't give you a solution thinking hard to stuff you can't prove.
I personally believe in a superior God, but I don't think absolutly it stares at us all day long, it just moves foward and creates other stuff.