You “Amils” have the book of Revelation spun around backwards. You have the last events happening first. The body of the beast and the false prophet go into the lake of fire at the second coming of Christ, not the first.
You apparently have no understanding of Amillennialism. We do not have the beast and false prophet going into the lake of fire at the first coming, but rather at the second coming.
What you are missing is that the book of Revelation has a series of parallels or recapitulations that start with the first coming of Christ and go up to the second coming of Christ. It is not chronological from beginning to end. Look at the description of the sixth seal. The day of Christ's return is already described as being at hand at that time as it says "the great day of His wrath has come" at that point (Rev 6:17).
It indicates that "the time of the dead, that they should be judged" has come as of the seventh trumpet and Revelation 20:11-15 indicates that the dead are judged AFTER the thousand years (and Satan's little season).
Revelation 20 starts another recapitulation which goes back to the time when Jesus began reigning, which scripture teaches occurred at the time of His resurrection (Matt 28:18, Eph 1:19-23).
You Premils do not accept that Jesus has been reigning over all and over His kingdom since His resurrection as scripture explicitly teaches (Matthew 28:18, Eph 1:19-23, Col 1:12-13, Rev 1:5-6).
You Premils do not accept that Satan was bound by Jesus's death and resurrection and the preaching of the gospel through the power of the Holy Spirit (Matt 12:28-29, John 12:31, Luke 10:17, Heb 2:14-15, 1 John 3:8, Acts 26:18) which has led to the salvation of "a great multitude" (Rev 7:9) in NT times after a vast majority of the world had "no hope" and were "without God in the world" in OT times (Eph 2:11-13).
You Premils do not accept what is taught in passages like John 5:28-29 which indicates that ALL of the dead will be resurrected at generally the same time/hour.
You Premils do not accept what is taught in passages like Matthew 13:36-43, Matthew 13:47-50 and Matthew 25:31-46 which is that all people will be judged at the same time.
You Premils do not accept that no mortal flesh and blood will inherit the kingdom of God (1 Cor 15:50). Premil has many mortal flesh and blood people inheriting the kingdom of God (Matthew 25:34).
You Premils (post-tribs, at least) do not accept that all unbelievers on earth will be killed when Jesus returns (Matthew 24:35-39, Luke 17:26-37, 1 Thess 5:2-3, 2 Thess 1:7-10, 2 Peter 3:10-12, Rev 19:17-18).
You Premils do not accept that scripture says we are looking for "a city whose builder and maker is good", a "heavenly country", not an earthly kingdom. You do not accept that we should be looking for "new heavens and a new earth, wherein dwelleth righteousness" in accordance with Christ's second coming (2 Peter 3:13), not a temporal earthly kingdom.