If there is indeed other life in our galaxy or the universe at large, I do not think they will be visiting us.
EVER.
I do believe that they are out there, I have been crunching numbers and doing frequency searches for SETI for well over 16 years on my home computer.
The reason I think they will be giving us the wide berth and avoidance is not our world leaders ( lack of) but the massive evidence that we are too stupid to deal with.
This evidence? YOUTUBE and basic TV transmissions and well the internet in general. My sister and I were having to watch Funniest Home Videos and with the general level of stupid in some of them, well those that are getting the transmissions are seeing who and what we are.
They pull up YouTube and, well you know it's the clearing house for dumb in about 60% of the videos.
Internet? Yes there is a large number of great and informative and educational sites, but the majority of sites shows that we should be avoided at all costs.
Are we too far gone as a society to save ourselves? Or should we just pack it in.