This is just a thought, but our thoughts tend to become reality.
A real extraterrestrial visit cannot happen out of the blue.
There is a problem that faces all space going travelers.
They cannot just show up and start visiting a planet that has existing life forms without protecting themselves and the life forms they encounter.
Microbiology would prevent the unprotected encounter.
Much the same way when travelers came to the Americas.
They brought disease that had a very hard impact on the population, either unintentional or not.
Fortunately, our world is prepared for the microbiological that have been created here.
People do survive and propagate the new genetic code of survival.
But, life forms coming here are far different from the life here.
We might not be well equipped to handle such an introduction of a new microbiological life form.
Likewise, a visiting life form might not be able to handle our microbiological life.
Kind of like what happened in "War of the Worlds".
So, what's one to do about this if we were to be introduced to the interstellar community.
Yep, the microbiology would have to be introduced at a low threat level in both the terrestrial and extraterrestrial from both sides.
Why did the President create the Space Force?
Is there much more at work here than just a virus conspiracy between nation states?
We know more than you might think.
Something is coming vastly bigger than what has been happening.
Our perceptions are about to be blown in to Space.
Jehocifer.