Robert, ... that verse you cited is Revelation 19:15. You are pulling from the same book that gives the erroneous interpretations of Rev. 20:1-7 that so many have mistaken for a legitimate doctrine of the Millennium.
The entire book contradicts Rev. 20 repeatedly, before and after that chapter, and the very point you are trying to make is contradicted at the end of the chapter that contains the verse you cited.
"And the remnant were slain by the sword of Him that sat upon the horse, which sword proceeded out of His mouth: and all the fowls were filled with their flesh."
Revelation 19:21
Is ... that the remnant you were referring to? They're pretty dead before chapter 20 even begins if you wish to take Revelation literally and from a linear perspective.
And if they were slain by that individual, that means they were slain by Jesus upon His return; shown here:
Matthew 24:29-31
Isaiah 13:9-11
2 Thessalonians 1:7-9
"And the remnant were slain by the sword of Him that sat upon the horse, which sword proceeded out of His mouth: and all the fowls were filled with their flesh."
Revelation 19:21
Is ... that the remnant you were referring to?
Now, this is a most excellent attempt to refute and correct with Scripture. I truly do applaud your sincerity toward the truth.
Most people simply bypass any Scriptural challenges to what they like to believe, and never take the time to seriously deal with any correction of any sort.
Well done!
And as the man Shane said:
"You had me snortin son."
However, the remnant in 19:21 cannot be the remnant of 19:15.
And out of his mouth goeth a sharp sword, that with it he should smite the nations: and he shall rule them with a rod of iron: and he treadeth the winepress of the fierceness and wrath of Almighty God.
Clearly, He will
rule the remnant of people on earth, as a Shepherd with rod of iron, that are not slain at the battleground of one specific gathering place on earth: Armageddon.
Every eye shall see Him at His coming again, but every eye shall not be put out by Him.
And I saw the beast, and the kings of the earth, and their armies, gathered together to make war against him that sat on the horse, and against his army. And the beast was taken, and with him the false prophet that wrought miracles before him, with which he deceived them that had received the mark of the beast, and them that worshipped his image. These both were cast alive into a lake of fire burning with brimstone.
And the remnant were slain with the sword of him that sat upon the horse, which sword proceeded out of his mouth: and all the fowls were filled with their flesh.
Clearly, this is
the remnant of the army gathered together under all kings of the earth: all nations will have some fighting in that battle to be destroyed by the brightness of His coming.
After the beast and false prophet are defeated, then the
remnant gathered together against Him will be slain.
This is not the remnant of all people on earth, but only the remnant of the whole army of earth: even as their remained a remnant of Egyptians on earth, after the whole army and king of Egypt was slain in the sea.
The only Scripture speaking of all inhibitors and people of the earth, is that all will see Him with their eyes, but no Scripture in OT prophecy nor Revelation speaks of all people on earth being slain at one time, without Him
reigning over them first.
The only Scripture speaking of all on earth being destroyed at one time, is that of Gog and Magog
at the end of His thousand year reign on earth, which is the confirmation of prophecy in Peter, where the earth itself dissolves.
All Scripture in prophecy speaks of His coming with a remnant to save and rule over: at His first coming there is a remnant of all people who believe Him unto salvation, and so it will also be at His coming again a second time.