Yes it cannot be any clearer.. Seems those who do not want it to be true will grasp any interpretation of scripture that avoids the clear reading..
Revelation 20: KJV
10 "And the devil that deceived them was cast into the lake of fire and brimstone, where the beast and the false prophet are, and shall be tormented day and night for ever and ever."
Revelation 20: KJV
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."
Who is tormented for all eternity?
9 A third angel followed them and said in a loud voice: "If anyone worships the beast and his image and receives his mark on the forehead or on the hand,
10 he, too, will drink of the wine of God's fury, which has been poured full strength into the cup of his wrath. He will be tormented with burning sulfur in the presence of the holy angels and of the Lamb.
11 And the smoke of their torment rises for ever and ever. There is no rest day or night for those who worship the beast and his image, or for anyone who receives the mark of his name."
Rev 14
It is obvious, those who receive the mark of the beast are tormented for eternity, while the rest are destroyed.
If it was not so, and all are tormented equally, then there is no worse fate to have the mark of the beast than
being an ordinary sinner. And clearly revelations is saying it is far worse if you align yourself with the beast.