Then there should be no reason for them to hide from us.
Nothing to fear. Nothing to need.
Impervious to any Earthly contaminants.
No worry about being captured and dissected.
here is a brief portion of one contactee's information regarding such disclosure:
It is ethical to keep this planet from a mental meltdown, because that’s what would happen if all of a sudden humanity became aware that there are thousands of ET ships on earth, on the moon, in orbit around the planet and throughout the solar system. Humans need to make a physiological leap before we can handle them face to face. A leap that will not happen until we hatch from this egg we call planet Earth and move out into the solar system.
Because they know how detrimental that would be to our development. If they came out our lives would be totally disrupted- no one would go to work, everything would come to a standstill- the trains, the street lights, delivering the food to the stores, gas pumps would go dry, --and on and on. Everyone would be so blown away that they wouldn't function.
Could you go about your daily routine if an armada of alien ships suddenly appeared on this planet? BTW they are here, incognito for your protection. They would have to take complete charge of six billion people, reorganize the whole planet pronto before humans starved to death.
It would not be a pretty picture, for one there would be lots of people against what they would see as an alien invasion and form a resistance movement, in the mean time chaos would engulf the planet.
Formal alien contact sounds nice but its impossible at this stage of human development. Humans need to cut their teeth in space and become more like the aliens before we can communicate with them openly. It will happen.
We have stealth craft designed to avoid radar and other forms of detection because we wish to remain incognito during reconnaissance. The ETs have the ability to mask their ships in infinite ways, including making them very difficult to photograph. They are invisible most of the times and uncloak only when they want certain people to see them.-- however they don't allow clear photos of their ships because they are not ready to make full contact.
That is why most contactees can only give briefs statements of theirs experiences- ninety five percent of what most experience is blocked from memory- regression only reveals what the aliens allow and most of the time info from regression is only stuff the ETS put there for that purpose- ETs are not as dumb as some people think.
ETs will dictate information télépathically like questions asked of them - seeing is believing they know this and don't want much of their stuff described on the front pages of newspapers.
If ETs wanted full disclosure it would be easy for them to do it -they don't want that- way too
disruptive, instead they let it permeate out slowly...
Most will not believe-- look how long it took to figure out that the Earth moves around the Sun and this planet is not flat-- even though simple instruments and common sense could have disclosed those facts. Some people will believe -- not because they are easily fooled but because they know instinctively. Most will continue to graze on the same old sod because that's what everyone else is doing.
Many are expecting disclosure in a large way but the vast majorities on this planet are not, nor are they truly aware of the possibility of extraterrestrials residing on Earth--and in sizeable number-- if that were to get out it would scare the sh-t out of a lot of people. The numbers of humans ready for wholesale disclosure are not there and will not be for some time.
In the mean time personal disclosure goes on every day-- however many of those people have a difficult time with it-- even those who believed they were ready for anything have discovered that they can't handle it.
They have spelled it out to lots of people but it will be a while before they come out of the closet for the general population. The government has no choice but to cooperate with ET. ET is not a threat to national security but if the average person who is oblivious of ET should ever know that they exist and are infinitely superior, that would be a problem. Its way too early for a one world government and that's what will happen when they disclose themselves.
Disclosure is not happening from the human end-- no government has that authority or ability to do it. It's far too soon for worldwide "first contact." Besides there is nothing that you could do or say that will convince non-believers of anything other than you might have a mental problem for talking about ET.
The vast majority remains stuck attempting to comprehend human phenomena- they are not ready for the extraterrestrial stuff. The memo for full disclosure has not been sent out however there will be a huge increase in personal contacts in the coming years. ETs are not going to make themselves known to the general population of earth anytime soon-- unless there are major earth changes in the works like natural or economic catastrophe.
Short of that, worldwide contact is not going to happen-----it's nowhere near time for them to come out.