>>/6197/
> I'm not sure.
That might be a sign that you should adjust your belief.
> However humans are currently simply shit compared to any entity that is capable of interstellar, let alone intergalactic travel.
That's assuming that there is expansionist intelligent extraterrestrial life capable of intersteller/intergalactic travel in the first place. Have you read https://slatestarcodex.com/2018/07/03/ssc-journal-club-dissolving-the-fermi-paradox/?
I don't think a probability of alien takeover in the next 50 years high enough to be relevant can be justified. I'd put it orders of magnitude lower than a "boring" human extinction by thermonuclear war or supervolcano or infectuous disease or whatever.
It sounds like you're biased towards unpopular countersignaly outcomes.