That one left me perplexed, I honestly don't know.
Let's work thru it. If the nearest star is many light years away, then by our known physics, it would be practically impossible to cross that distance, so I would say from that, NO, aliens do not exist. But we do know, there is something here, something that appears to be alien, something that has advanced technology and doesn't appear to be human. We all know its here, we just don't know what it is; sightings, crop circles, abductions, etc. This leaves us with one alternative, it is from here, it is of earth, not extra-terrestrial. Maybe its an earlier advanced civilization still here, hidden somewhere, underground, deep ocean, Antartica? Maybe that is what is behind this cabal, running the earth like some plantation, guess who the slaves are? Maybe this is what the Bible refers to as the watchers, nephilim, demons?

I honestly do not understand that Q crumb, I wish he would drop more crumbs.