I guess I would go the way of Bruno if some of the views here are to be credited, since I think people like the idea of extraterrestrials so much they grasp at it, when there is really no evidence to think they exist and a lot of good reason to think we are probably effectively alone.  All the arguments on the other side are grasps at straws, at "what ifs" and possibilities, not based on anything firm.

Oh, for sure "we" are "out there" -- the universe is BIG.  Still, things like us, and maybe even life, is going to prove to be excruciatingly rare.

The misinformation about galaxies that produce lots of excess radiation was a bit much.  These are active galaxies that do so from known natural processes.  We would naturally expect some to produce a lot and some not so much anyway.

I think about the long and complicated, and mostly fortuitous, series of events that led to us and to a planet like ours and to the evolution of things like multicellular life and photosynthetic organisms and plate tectonics and trees and arboreal primates and no extinction events and so on and on and I conclude we were extremely lucky, the corollary being that we are rare.

If "they" land on the White House lawn (or maybe at the Forbidden City) tomorrow, fine, I will be delighted but a bit scared.  Anything much less than that is not going to be persuasive.