The problem is: you attribute a meaning to Rev 20 that is out sync with the rest of Scripture. Your understanding is non-corroborative.
So,
(1) I believe Premils attribute something to Revelation 20 that is not in the reading.
(2) They ignore the fact that Scripture repeatedly identifies the Messianic intra-Advent period as a time of enlightenment for the Gentiles. This does not in any way insinuate that all will be saved. Not in any way. With the global expanse of the great commission the Gentiles now are without excuse. The ignorance is gone. The veil is lifted. The means by which God lifts deception is the preaching of the Word of God. This has now been successfully ongoing throughout the nations for 2000 years.
(3) This does not suggest a time of no deception, only a time where Satan cannot deceive the Gentiles like he once did.
(4) Those within the Premil camp that dismiss this concept forget that the binding of Satan in their paradigm equally doesn’t stop many being personally deceived in their millennium. The fact that billions arise to surround the saints at the end is evidence that this enlightenment is a general opening of the Gospel to the nations.
Revelation 20:2 makes clear,
"And he laid hold on the dragon, that old serpent, which is the Devil, and Satan, and bound him a thousand years. And cast him into the bottomless pit, and shut him up, and set a seal upon him, that he should deceive the nations (
ethnos)
no more, till the thousand years should be fulfilled: and after that he must be loosed a little season.”
Scripture often makes broad general sweeping statements. When Scripture tells us that the Gentiles would no longer be deceived it does not mean every single one of them, or even most of them, would be saved, just that the ignorance would be finally lifted from the darkened Gentiles. This relates to the Gospel light going out to the Gentiles (ethnos). Before the cross they were in darkness; now they are enlightened. The answer to darkness every time is light.
With the Lord’s First Advent, the light began to shine brightly. Jesus confronted, overcame and dispelled the darkness at every turn. Satan was defeated on his own turf. Jesus bound Satan in spiritual chains. He limited his authority and influence over the Gentile nations and invaded his kingdom with the truth. Now the rest of the world has the opportunity to repent and receive deliverance and freedom. Satan's authority to deceive has been broken over countless millions since Calvary.
Isaiah 9:1-2 predicted the Messiah and the massive effective of the spread of the Gospel to the nations:
“the dimness shall not be such as was in her vexation, when at the first he lightly afflicted the land of Zebulun and the land of Naphtali, and afterward did more grievously afflict her by the way of the sea, beyond Jordan, in Galilee of the nations. The people that walked in darkness have seen a great light: they that dwell in the land of the shadow of death, upon them hath the light shined.”
This historic change that would move the Gentile from darkness to light, from ignorance to enlightenment, from being thoroughly deceived to being able to repent and embrace Christ, marked a massive turning point for mankind.
Matthew 4:13-16 confirms this fulfilment:
“leaving Nazareth, he came and dwelt in Capernaum, which is upon the sea coast, in the borders of Zabulon and Nephthalim: That it might be fulfilled which was spoken by Esaias the prophet, saying, The land of Zabulon, and the land of Nephthalim, by the way of the sea, beyond Jordan, Galilee of the Gentiles; The people which sat in darkness saw great light; and to them which sat in the region and shadow of death light is sprung up.”
Matthew here refers to Isaiah 9:1-2. The light began to shine began to shine bright through the earthly ministry of Christ, it spread out to the darkened nations after the cross through the great commission. Truth was boldly preached, and ignorance was removed from the Gentiles.
The Gentiles who “sat in darkness” have now “saw great light” (Matthew 4:15) since and through the earthly ministry of Christ and His glorious life, death, and resurrection. Light has been revealed to a people that were once hopelessly deceived. They can now no longer claim ignorance. If Gentiles want salvation it is now there for them. The veil of deception has been decisively lifted off the heathen.
There was a large effectual door of opportunity opened up after Christ’s mission to earth that involved evangelizing the darkened heathen ethnos (or Gentile nations) for the first time. This was a complete change of focus and a notable widening out of the racial target-group. From a near totally Jewish Church, to a near totally Gentile Church, was a massive change of fortunes. The door of opportunity was closed to every Gentile village, town, city and nation before the cross outside of one city - Nineveh.
John 1:1-4: “
In the beginning was the Word, and the Word was with God, and the Word was God. The same was in the beginning with God. All things were made by him; and without him was not any thing made that was made. In him was life; and the life was the light of men. And the light shineth in darkness; That was the true Light, which lighteth every man that cometh into the world."
Jesus said in John 1:10-12:
“He was in the world, and the world was made by him, and the world knew him not. He came unto his own, and his own received him not. But as many as received him, to them gave he power to become the sons of God, even to them that believe on his name.”
Did all the Jews reject Him? No! This is simply generality!
Jesus came to shine a light of truth into the world. The Lord Himself declared in John 8:12,
“I am the light of the world, he that followeth me shall not walk in darkness, but shall have the light of life.”
1Jn 1:7 if we walk in the light, as he is in the light, we have fellowship one with another, and the blood of Jesus Christ his Son cleanseth us from all sin.
Spiritual ignorance is a terrible affliction. The only thing worse is spiritual enlightenment and a refusal to act upon that. That is ultimate rebellion.
Once the Word of God is allowed to shine the darkness is exposed. People gain revelation. Ignorance is removed. Direction is given. Decisions then have to be made. It is a very blessed thing to have the Word of God faithfully preach to you. But it is also a very sobering thing, because with it comes responsibility.
So, through the great commission, the
ethnos (Gentiles) are no longer deceived. That is simply what Revelation 20:2 is saying. It is not rocket science!