What are the chances that the first aliens to find us are Episcopalians? Military? Fugitives from justice? Space Vikings? Pirates? Missionaries? Psychopaths? Good guys? Bad guys?
Like the first natives seeing the Spanish galleons approaching over the horizon. Might be good news. Might not.
They make entire programs about what ancient knowledge has been lost then insist the ancients were all dumb as door nails. They could have had bits and pieces of all kinds of advanced technology a few people knew about and kept within a small clique but, nooo, it had to be aliens who built anything we can't figure out.
Anything that someone claimes 'proves' aliens are running loose pissed off because they came here to hunt T-Rex so they settle for anal probing is just stupid. All their 'proof' fits exactly with what the Bible attributes to the plane angels and demons exist on. A portion of reality we don't normally interact with.
It's nothing but egotism that puffs up the godless twits driving the crap about aliens because it feeds their ego to insist we're smarter than everyone who lived before us. We're not, we use different approaches, but that doesn't make us smarter or even provably as smart.
For professing themselves to be wise, they became fools.
JMHo