That is man's assignment from our Creator.
Leaving doesn't make sense as it would be the same mistake Adam made, not obeying God.
You don't realize that for a man to be good and blessed may meet our need but not God's will. But God has the need of His eternal purpose, to unite with man making him a God-man.
Jesus Christ Heads up this deeper aspect of man's creation - to have
"many brothers" conformed to the image of the Firstborn Son Who is God and man united to be one.
This man is not just good and in a garden.
This is God become a man, firstly in Christ.
And this the fullest purpose of God living in man.
The earthen vessel may be restored to be undamaged and good. But the eternal purpose is not yet fulfilled that God's life in Christ, as the
treasure , would enter into the earthen vessel.
" But we have this treasure in earthen vessels that the excellency of the power may be of God and not out of us." (2 Cor. 4:7)
There can be a very good earthen vessel which is empty.
There can be a redeemed earthen vessel into which the life of God has come to be
"this treasure in earthen vessels".
To be
"alienated from the life of God" is to not possess the
"treasure in earthen vessels".
God's eternal plan calls for something beyond a good and happy man with everything he needs living in a garden paradise or on a restored earth. God's eternal plan is to dispense His life INTO the earthen vessel that God may live in man.
Look to Jesus the Son of God to see the Prototype and the standard Model of what God is after ultimately - God-maan.
In resurrection the second Head of this new race, the last Adam, became in a form in which He can enter into man as a God giving Spirit.
" the last Adam became a life giving Spirit " (1 Cor. 15:45)
2) It seems like you do have a partial understanding about the 144,000 but you seem to
circumvent their literal number.
You have to key into two words which both indicate the GROWTH of life:
Firstfruits
Harvest
The difference is only in TIMING. Firstfruits appear first or early. Harvest appears afterwards.
This is why I think
Revelatuio 14 is so useful as a synopsis of the end of the age, a corner study.
Generally speaking a remnant of living people will become a kind of corporate Enoch. They will live Christ, follow Christ, be taken and raptured for God's satisfaction - early.
Afterwards, the
Harvest of people with God's growing His divine life in them, will follow. It is a matter of timing. Firstfruits mature early or first. This is a remnant. Harvest follows shortly and surely afterwards.
Generally speaking this is depicted in the rapture of
Firstfruits in
Revelation 14:1-20. This is the first reaping of God-men "plants"[/b] before the great tribulation. And at the end of that tribulation we see the reaping of the majority, a
Harvest -
verses 14-16.
Timing is different. But the essential nature of the Firstfruits and the Harvest is the same. They are men and women with Jesus Christ dispensed into them. The have the living treasure within their earthen vessels.
The church is seen as God's farm to grow God's life in Christ within the saved.
" I planted, Apollos watered, but God caused the growth." (1 Cor. 3:6)
"For we are God's fellow workers; you are God's farm, God's building." (v.9)
The Firstfruits and the Harvest are both of God's farm and are for God's building.
The building is built by the growing of Christ in people.
This requires a whole discussion of its own. But you should see that the believers have Christ growing in them. And at the end of this church age, God testifies to the world by showing His mark of approval in that raptures will take place to temporarily remove them from the earth to Christ above the earth.
This is seen in the reaping/ rapture of Firstfruits -
Revelation 14:1-5 and a reaping/rapture of a Harvest -
Rev. 14:14-16 .
This is a minority followed by a majority. The difference is in timing.
Your other point 3 I may address latter.
The church is God's farm and God's building. The farm is for growing Jesus in people. The building is a corporate aggregate of God growing in a collective group of people to build them up together in the life of Christ.
God cannot fail to obtain a mature crop from the farm.
God cannot fail to obtain a large building.
Both the plants individually and the building corporately are a matter of God in Christ entering into man. This is the reality of eating from
the tree of life.
In the millennial kingdom the sons of God reign over those nations who are transferred from the church age over into the millennial age. The latter are restored to be in the state that Adam was before he fell. But these "sheep" are not regenerated.
I say to you that you do not want to be in this group is you wish to be saved today. You do not know if the great tribulation comes whether you will survive that period. It is better to decide to receive Jesus as Lord into your heart now while you have opportunity.
But this will require that you no longer take Him to be an angel but to be God-man, the Son of God. He is the Lord and Savior. And we must realize He is the Word of God become flesh.
In resurrection, He can impart God as life into all those redeemed by His precious blood.
" But as many as RECEIVED Him, to them He gave the authority to become children of God, to those who believe into His name."
You don't believe into His name to become a child of God with God's life growing in you, if you reject Christ as only a created angel such as Michael.
Man is not born gain because man acknowledged that God has angels.
It is the Son of God that we must nor reject or redefine according to our rejection of Him.
It is the Son of God received into our hearts that gives this authority to be born into God's family. The passage goes on to say:
" ... to become children of God, to those who believe into His name,
Who were BEGOTTEN not of blood, nor of the will of the flesh, nor of the will of man, but of God." (v.12c,13)
We should call on the Lord Jesus and receive Him to be BORN, to be BEGOTTEN of God, with God's life imparted as Spirit of life into our earthen vessels. We can be born of God. We can be born again though we are naturally already born and older.
We can be born to be the children, and eventually the sons, of the Father. This is higher than a good man in a garden where everything he needs outwardly he has. This is rather to take the fruit of
"the tree of life" and have Christ come into our hearts.