IF a non-terrestrial civilization has obtained the developmental level to travel among the stars, it is a sure bet that they are no longer anything like humankind, murdering tens of millions, obliterating whole cities with the population therein, and destroying the home world ecosystem with toxic wastes. Seeing humankind is still roiling in such suicidal behavior, these advanced creatures would not want us joining their civilization.
The closests two stars which could have such a civilization are a couple of billion years older than our star. Can we extrapolate from that regarding the formation of life and the time spans associated with growing out of the suicidal behaviors? I think we should. Perhaps God made humankind different from the other intelligent creatures in His Universe, for reasons known to Him but not yet explained to us. we are a very primitive species. There is Bible teaching which says we shall not always be so primitive.
Professor Donald Kessler: We know they're extremely advanced technologically, which suggests - very rightfully so - that they're peaceful.
An advanced civilization, by definition, is not barbaric.