Whatever... you're incapable of understanding or you would understand the simple Truths explained in The Holy Scriptures regarding the fate of sinners. It isn't an end of existence which is suffered in the Lake of Fire or the Bible would say so. It is eternal conscious torment just like The Word of God says. Please stop lying about God's Holy Word. They suffer the same fate as demons, and it is torment for ever and ever.
And the third angel followed them, saying with a loud voice, If any man worship the beast and his image, and receive his mark in his forehead, or in his hand, the same shall drink of the wine of the wrath of God, which is poured out without mixture into the cup of his indignation; and he shall be tormented with fire and brimstone in the presence of the holy angels, and in the presence of the Lamb: and the smoke of their torment ascendeth up for ever and ever: and they have no rest day nor night, who worship the beast and his image, and whosoever receiveth the mark of his name.
No rest day or night doesn't say that they will be put to death by being burned. It takes only a few seconds for fire to kill. They will not be killed but will suffer eternally, quite obviously.