Do you not understand that the word perish/destroy in the Greek means to destroy "fully and utterly"? That's the very first definition. You can cling to other meanings to hold onto your doctrine if you choose but the meaning is pretty clear.
And you don't believe Christ's own words?
Revelation 20:14 "And death and hell were cast into the lake of fire. This is the second death."
Christ himself tells us what the Lake of Fire is. You are changing the very definition of the word "death" And this teaching coincides with his teaching in Matthew 10:28. It's either life or death. And that's how it's played out through the entire Bible. The wages of sin is death. And common sense alone tells us that the first death is the death of the body and the second death would be the death of the soul. It makes no sense to even have a 'second" death if that were not the case. You are stating in essence that there is really only one death, the death of the body. Which is not what Christ teaches.
Also you don't believe these words?
Revelation 21:1 "And I saw a new heaven and a new earth: for the first heaven and the first earth were passed away; and there was no more sea."
Revelation 21:4 "And God shall wipe away all tears from their eyes; and there shall be no more death, neither sorrow, nor crying, neither shall there be any more pain: for the former things are passed away."
You really need to let these verses sink in. Hell and the Lake of Fire are a former thing. They are done away with, they have passed away. God is a consuming fire. Which is why there will be no more crying or sorrow, etc.
Revelation 21:5 "And he that sat upon the throne said, Behold, I make all things new. And he said unto me, Write: for these words are true and faithful."
Let that sink in, he makes all things new. It's a brand new everything. The former things are no more. To say otherwise means you don't believe he makes all things new. All means all. You don't believe the former things are passed away.
Here's an earlier verse that you need to let sink in that gives us the very nature of God
II Peter 3:9 "The Lord is not slack concerning His promise, as some men count slackness; but is longsuffering to us-ward, not willing that any should perish, but that all should come to repentance."
He doesn't want anyone to even perish (die) that's why he's so long suffering and yet you believe he wants to torture someone for an eternity. You can't reconcile those two things, it's not possible.
Just as many don't believe it to be so. That's not an argument. I'd rather go with Christ's teachings on the subject.