At least SOME of the galactic civilizations who are now visiting planet Earth, are actually RETURNING to their ancient planet of origin.
Galactic humanity HAD to have had their origins SOMEWHERE, and with its wide diversity of languages, ethnicities, skin colors and cultures... why could not planet earth be one of these (if not THE) planet of genesis for many of the galactic civilizations now visiting her?
In an early article titles "Tribal Memories of the Flying Saucers" ( see: https://www.angelfire.com/ut/branton/panamintroglodytropolis.html )... we read the account of an ancient native American (Paiute) tribal 'history' (NOT legend) of an ancient civilization FROM EARTH who LEFT this planet to colonize other worlds AFTER developing ever-increasingly advanced flying vessels, from their ancient underground civilization beneath Death Valley and the adjacent Panamint mountain range of California.
The late UFO "contactee" Jefferson Souza, who had many encounters with HUMANS from the star Vega in the Lyra constellation, said that he was taken by then to a huge underground base-city beneath Death Valley where the Vegans shared these huge natural caverns with other human-like beings, including those from the star system of Wolf 424 (most commonly known to UFOlogists as the star(s) Iumma, home of the planet Ummo).
Is not it reasonable to speculate that the Vegans may have simply been occupying an underground "city" of their origins, from which they maintained contact as their colony in Vega Lyra grew and expanded throughout the galaxy?
In my investigations into the UFO contactee scenario, references to some star systems have repeatedly turned up in connection to BENEVOLENT extraterrestrial civilizations. These include: Vega Lyra, Taygeta Pleiades, Zenatae Andromeda, Tau Ceti, Epsilon Eridani, Wolf 424, and Procyon just to name a few.
On the other hand, some of the negative/regressive REPTILIAN dominated star systems / worlds which have reportedly waged deadly wars with the Lyran Federation in the past, include: Alpha Draconis, Bellatrix Orion, Rigel Orion, Zeta Reticuli, Capella, Epsilon Bootes, etc.
The galactic Federations must realize that planet earth has now become a big player, for better ( https://www.angelfire.com/ut/branton/Starfleet.html ) or for worse, on the galactic stage.
This "secret space program" was largely the result of the back-engineered technology from crashed UFOs (mostly alien 'grey' craft which the U.S. military were able to bring down with electromagnetic and other weapons, after it was learned that the electromagnetic RADAR beams interfered with the electromagnetic propulsion systems of the alien craft. Unfortunately, though, this also applied to craft occupied by benevolent humans. (see this search for: UFO Crash Retrieval )
However, this ET interaction by the U.S. government is NOT for the PUBLIC (who PAY for these Above-Top-Secret programs with their TAX dollars). It is controlled by the military-industrial complex, AND the secret masonic societies that control THEM.
So then, the average citizen of planet earth remains out of the galactic "loop".
One of the main dangers to Terrans on planet Earth AND to the human Federation(s) is that the draconian HIVE (similar to the total mind-control network of the "Borg" depicted in the Star Trek 'Next Generation' TV series) has essentially been able to HACK into the so-called ASHTAR collective, a group-mind which is increasingly violating the sovereignty and personal independence of those who have come under its influence, both human or otherwise, throughout the galaxy.
There are indications that the TRUE controllers of the Ashtar collective are actually 5D ASTRAL entities, posing as "Ascended Master's" (or, Ass-Ended Masters? ;-) which have little regard for the rights and the NEED for humans -- and others -- to maintain their personal freedom, sovereignty, and independence!
The "Ashtar" collective wants to bring down what REMAINS of the Constitutional government of the USA and establish a fascist "New World Order" on earth.
Adolph Hitler, by the way, ALSO had this same goal for a "New World Order" and he largely succeeded since after two WORLD WARS (BOTH started by Germany), Germany now CONTROLS the European Union (4th Reich) and is essentially Europe's financial and political CENTTER! The CENTRAL control system of the Ashtar Command/Collective is said to be in SIRIUS-B (do a page find Ctrl/F for: "for ashtar").