Is it because our species has really stupid things?
Would they come because they want to steal all of our natural resources?
If you were an alien, why would you come here?
What is something that extraterrestrial life may lack?
Do you have any other questions?
We, humans, have this inbuilt tendency to be afraid of the unpredictable or unexpected. And when this unpredictable happens, we try to eliminate it
With this fear, how would you even expect the aliens to come to earth. If we aren’t friendly or welcoming to them and get scared by even a random UFO like thing in earth’s atmosphere, they won’t really bother to come here. Thus, leaving us loners
Or perhaps, they already have come to earth and maybe living among us by being one of us, all the while sending back information about us to their HQ or whatever. If you have watched Captain Marvel ( ahem, Skrulls, ahem), you would know what I am talking about
I think that if aliens were to come to earth, they would have done it anyway. I believe in aliens and think that they are MUCH smarter creatures than us, so why would they come here? There have been UFO sightings in the past, maybe they’ve already come or are already here…