Your post below is quite good and actually, parallels The Urantia Book.
FWIW:
Note: The Urantia Book uses the term "universe" somewhat differently than we use it today.
12:1.7 The Grand Universe is the present organized and inhabited creation. It consists of the seven superuniverses,
with an aggregate evolutionary potential of around seven trillion inhabited planets, not to mention the eternal spheres of the central creation. But this tentative estimate takes no account of architectural administrative spheres, neither does it include the outlying groups of unorganized universes. The present ragged edge of the grand universe, its uneven and unfinished periphery, together with the tremendously unsettled condition of the whole astronomical plot, suggests to our star students that even the seven superuniverses are, as yet, uncompleted. As we move from within, from the divine center outward in any one direction, we do, eventually, come to the outer limits of the organized and inhabited creation; we come to the outer limits of the grand universe. And it is near this outer border, in a far-off corner of such a magnificent creation, that your local universe has its eventful existence.
2nd Note:
The Urantia Book describes a species of "non-breathers," mortals. In other words, within parameters, life is designed to fit a habitat. No air? They can get their sustenance from sunlight. And The Urantia Book says this below about a race of non-breathers "in close proximity" to our world. I take that to mean the Greys, and I take it to mean they live right here in our solar system with us. They don't come from another star to visit us. They're probably native to the Moon, Mercury, Ganymede, Callisto, Europa, or perhaps even Pluto. There are a lot of non-breather candidate worlds in our solar system.
49:3.6 You would be more than interested in the planetary conduct of this type of mortal because such a race of beings inhabits a sphere in close proximity to Urantia.
I'm going to take a moment and explore some concepts and observations that might shed some insight on the whole religion proof thing. Bear with me...
Right now, In all the Universe we only know of one planet in one star system that has life. On that planet we know of only one species that has what we consider intelligent life...US.
Religion makes this out to be something very special. That in all creation mankind is the only intelligent life created. It portends to describe that mankind is made in the image of its creator.
Lets say that only one lifeform exists per star system. That the life form in each star system is man, everytime.
In the Milky Way galaxy alone (we know the Milky Way galaxy exists), around 100 thousand light years across, there are around 200 million stars. That means, there are 200 million created mankinds.
But wait.
We have detected the observable Universe at 14 Billion light years across.
That is observable from our current vantage point. It is a sphere of detection that extends out 14 billion light years no matter which way you look. There is no detected edge which means that if you change the vantage point and look again, you may see an additional 14 billion light years because we are limited to detecting light thru time.
At 14 billion light years we estimate there are 30 billion trillion stars in the Universe that we can detect. That's (3x10²²) a lot of mankind made in the image of God. How can we be anything special.
Now take the possibility that life exists on more than one planet in a star system and the number grows exponentially.
We are looking for any life on any other body in the solar system. If we find it, that fact will change the special purpose of mankind in the Universe forever. The vast expanse of the Universe is significant to reason in this train of thought.
Look at life on this one little planet. There are billions of lifeforms here. Plus there is the fact that we can't communicate with any other lifeforms on this one planet except ourselves in any meaningful way. How do we know what the intelligence level of any other species is except by measuring it against our own ideas of intelligence.
Not only is our religion biased to ourselves, our science and understanding of the Universe is biased to ourselves. We have no standard on which to gauge our accuracy, except the standards we create.
I find your replies interesting.
Let me continue a bit on a tangent.
Reality is just reality. It requires no justification and no proofs. It just is.
There is no emotional connection in reality.
There is no higher reason for reality. It just is.
The human mind has innate fear of the unknown.
Reality even in its simplicity is unknown.
We wrap delusion around reality so it is easier to deal with.
That delusion is belief.
Human beings tend to complicate everything.
Our delusions of reality become complicated to give us harmony that exists in our own perception of the realities we choose to embrace.
Religions play on those delusions to give us a sense of comfort in a world of stark cold reality.
It is our delusions that allow us to cope with it.
No matter what delusions we tell ourselves, reality always exists, even when we refuse to embrace it. This results in a feeling of need or inadequacy.
Its those feelings of need or inadequacy that religion tries to fulfill.
The problem is that those delusions do not fill the needs without absolution. Meaning believing without question.
During our existence in reality we encounter times when the delusion of belief is inadequate to aleve the trepidation of what reality is and we become discontented.
Some people seek guidance (contentment) in religion, others find their contentment in their own delusional perception. A small percentage embrace reality and deal with it as is.
This is why you can quote me saying that "if you find contentment in your belief what more do you need?".
Understand that reality is not as per human understanding. Reality has no dividing hierarchy, it just is. Religion assumes a hierarchy of purpose.
To realize that everything we know, everything we understand about reality is merely our interpretation of it is comforting. Religion attempts to define purpose where no purpose exists. People pick up on that even when they don't realize it.
As mankind embraces more and more of reality we require less and less belief in religious mandates. This is why religions are waning in favor of reality based science.