Appealing to “what the Bible actually says” doesn’t do much good, if you’re willing to explain/interpret away whatever doesn’t suit your personal tastes...
One more time:
“And the smoke of their torment goes up for ever and ever; and they have no rest, day or night, these worshipers of the beast and its image, and whoever receives the mark of its name.” (Revelation 14:11) It’s a funny kind of “death” which you have in mind, if the Bible says that they will have “no rest, day or night”, and that “the smoke of their torment goes up for ever and ever” (if they’re obliterated, then there wouldn’t be any more “smoke of their torment”, would there?).
“and the devil who had deceived them was thrown into the lake of fire and sulphur where the beast and the false prophet were, and they will be tormented day and night for ever and ever.” (Revelation 20:10) How can they be tormented, day and night for ever and ever, if they’ve been erased from existence”?
Your opinions are clouding your reading of Scripture, FRiend.
Because Jesus never taught soul annihilation.