This is an interesting post and I wanted to go dig into Revelations and listen to a sermon I have on those particular verses.
Rev 19:11 "Now I saw heaven opened, and behold, a white horse. And He who sat on him was called Faithful and True, and in righteousness He judges and makes war."
So this is Christ seated on a white horse, not a monster. The 'Faithful and True' name directly references Christ. Christ is faithful to His promises and true in His judgments. This title assures believers of Christ's unwavering commitment to justice and truth. Here we see Christ riding forth to make war against the Beast, the AntiChrist and the False Prophet.
Ref. Ps.96:12-13
"Let the field be joyful, and all that is in it.
Then all the trees of the woods will rejoice before the Lord.
For He is coming, for He is coming to judge the earth.
He shall judge the world with righteousness,
And the peoples with His truth."
Rev 19:12-13 "His eyes were like a flame of fire, and on His head were many crowns. He had a name written that no one knew except Himself. He was clothed with a robe dipped in blood, and His name is called The Word of God."^
The 'eyes like flame of fire' is a reference to judgment of the world. The many crowns are the diadems, the crowns of kingdoms and authorities, indicating that Christ now rules over the whole world. The robe dipped in blood means the blood of the enemies from the 'winepress of God's wrath'.
Ref: Isa.63:3
“I have trodden the winepress alone,
And from the peoples no one was with Me.
For I have trodden them in My anger,
And trampled them in My fury;
Their blood is sprinkled upon My garments,
And I have stained all My robes."
Rev. 19:15 Now out of His mouth goes a sharp sword, that with it He should strike the nations.
Ref. Isa.11
"But with righteousness He shall judge the poor,
And decide with equity for the meek of the earth;
He shall strike the earth with the rod of His mouth,
And with the breath of His lips He shall slay the wicked."
Christ will speak his judgment and people will die immediately. Just as in Acts where Peter gave his judgment on Ananais and Saphira and they fell down dead.
Ref 2 Thess. 2:8
"And then the lawless one will be revealed, whom the Lord will consume with the breath of His mouth and destroy with the brightness of His coming."