Your bias Premillennialism is blinding you to the fact that there are only two types of people in this world - saved and lost. You try to invent a third group that are too wicked to be raptured and too righteous to be destroyed that do not exist. Your misinterpretation of one highly-symbolic passage in the most figurative setting in Scripture colors your view of all Scripture.
What happens to the righteous when Jesus appears? What happens to the wicked when He appears? In Matthew 25:33 Christ (the king) sets “the sheep on his right hand, but the goats on the left.” He then sentences them, and eternally separates them. The sheep are the believers, the goats are the unbelievers. Jesus confirms this in this final sentencing of all mankind in Matthew 25:34, 41&46, declaring: “Then shall the King say unto them on his right hand, Come, ye blessed of my Father, inherit the kingdom prepared for you from the foundation of the world … then shall he say also unto them on the left hand, depart from me, ye cursed, into everlasting fire, prepared for the devil and his angels … and these shall go away into everlasting punishment: but the righteous into life eternal.”
The terms “the sheep,” “them on his right hand,” “ye blessed” and “the righteous” are seen to be synonymous in this parable. The wicked on the other hand are simply deemed “the goats,” “them on the left hand” or “ye cursed.” The righteous are seen in Matthew 25:31-45 to “inherit the kingdom” and “life eternal” whereas the wicked are cast “into everlasting fire” and receive “everlasting punishment” (Matthew 25:46). The designations and sentences can only relate to the saved and the unsaved. They could not be clearer. There are no exceptions or other groups additional to these two diametrically opposing groupings.
This is the final separation of the wicked from the redeemed of God. It is the climactic assignment of eternal destinies. All mankind is found embodied in one of these two unique groupings. There are no ‘nearly saved or ‘semi-saved’ people or ‘nearly lost’ or ‘semi-lost’ people on this day. One is either clothed with Christ’s robes of righteousness or eternally saved or he is He is clothed with his own filthy rags of righteousness and eternally lost. No one inherits the kingdom through national identity.
Revelation 20:11 And I saw a great white throne, and him that sat on it, from whose face the earth and the heaven fled away; and there was found no place for them.
12 And I saw the dead, small and great, stand before God; and the books were opened: and another book was opened, which is the book of life: and the dead were judged out of those things which were written in the books, according to their works.
13 And the sea gave up the dead which were in it; and death and hell delivered up the dead which were in them: and they were judged every man according to their works.
14 And death and hell were cast into the lake of fire. This is the second death.
15 And whosoever was not found written in the book of life was cast into the lake of fire.
Where do you see any of these divided into two groups?
Explain why you think Jesus would be saying the following to everyone in verse 13, especially those delivered up from death and hell?
Matthew 25:42 For I was an hungred, and ye gave me no meat: I was thirsty, and ye gave me no drink:
43 I was a stranger, and ye took me not in: naked, and ye clothed me not: sick, and in prison, and ye visited me not.
Then explain why you think all of those in verse 13 would be answering Jesus like such, especially those delivered up from death and hell?
Matthew 25:44 Then shall they also answer him, saying, Lord, when saw we thee an hungred, or athirst, or a stranger, or naked, or sick, or in prison, and did not minister unto thee?
And if the sheep and goats judgment is involving all of the lost since the beginning of time, they being judged, explain why Jesus would be saying to anyone who was already long gone and dead way before His first coming happened first---For I was an hungred, and ye gave me no meat: I was thirsty, and ye gave me no drink. I was a stranger, and ye took me not in: naked, and ye clothed me not: sick, and in prison, and ye visited me not.
This alone proves that this judgment can't be involving any of the lost outside of the NT church era. This judgment is involving exactly what I said it is. It is involving judgment within His NT church, the sheep being His profitable servants, the goats being His unprofitable servants.
Cain was obviously among the lost. Per your interpretation you have him on the left side with the goats and then Jesus saying to Cain, someone that lived thousands of years prior to Him---For I was an hungred, and ye gave me no meat: I was thirsty, and ye gave me no drink. I was a stranger, and ye took me not in: naked, and ye clothed me not: sick, and in prison, and ye visited me not.---then Cain answering Him like such---Lord, when saw I thee an hungred, or athirst, or a stranger, or naked, or sick, or in prison, and did not minister unto thee?