You should try lemmy, it’s almost everything what you describe you are missing. Jokes aside, I think that what you refer is mainstream internet, which like music is usually shitty if it’s mainstream, to find the good stuff you have to take your time to dig deeper. Internet is an incredible tool and it’s being used both to enslave and to free people.
The universe is so unimaginable large and there are so many stars and planets that there are good chances of the existence of extra terrestrial life, but at same time there is a very small chance that they can find us, even if they are advanced enough to search for life in the universe. If they are much more advanced than us they probably don’t care, in the same way we don’t care to try to make contact with all the ants of the earth.