This is the common cop out when scripture as written contradicts someone's assumptions/presuppositions they simply blow it off as figurative, symbolic, poorly translated etc.
I can't speak for others but that's not true of me. I don't interpret scripture according to presuppositions. I was raised to believe the same fundamental doctrine that many still believe. Those were my presuppositions for about twenty years. It was sincerity in search, a desire for only truth, and a good dose of, "God guide me into truth" with rigorous study of scripture that allowed me to overcome those presuppositions and get understanding.
Believe me, if you would have happened upon me on a forum many years ago, I would right now be condemning you to eternal suffering for you false and heretical teachings. Not about "endless suffering" but because you are a baptist. If you were not of the Church of Christ, you were going to burn forever for your willing ignorance, your willing rebellion against God, and that all of your worship and belief in God was entirely in vain. I would be condemning everyone on this forum to eternal suffering. I would also be stating that God is entirely just and holy for sending you and everyone else to burn for eternity. Why? "Because God is also Holy, and His Holy justice demands that all of you false Christians burn forever for your wickedness."
Even now I look back at how absurd that all is to have been proceeding from my mouth. But, absolute sovereignty explains how such things can actually be believed in the mind and heart of men.
There are NOT myriad passages teaching universal reconciliation [UR]!
There are. And they are taught with more clarity and precision than the scant (what are there, two?) verses interpreted as teaching endless suffering. In fact, there are no verses at all teaching the concept of endless suffering. Thus I would be so bold as to confidently maintain that those teaching such a notion are the ones basing their interpretation on assumption/presupposition; as also I once did.
Here is a small sample of passages:
John 12:32 And I, if I be lifted up from the earth, will
draw all men unto me. (Thus all men will be drawn to Him)
2 Corinthians 5:19 To wit, that God was in Christ,
reconciling the world unto himself, not imputing their trespasses unto them; and hath committed unto us the word of reconciliation.
Colossians 1:20 And, having made peace through the blood of his cross,
by him to reconcile all things unto himself; by him, I say, whether they be things in earth, or things in heaven. (Thus the stated purpose of the cross wasn't to "attempt" reconciliation, but to manifestly reconcile all things in earth and heaven)
Philippians 3:21 Who shall change our vile body, that it may be fashioned like unto his glorious body, according to the working whereby
he is able even to subdue all things unto himself. (Thus He is able to subdue all things)
1 Corinthians 15:28 And
when all things shall be subdued unto him, then shall the Son also himself be subject unto him that put all things under him, that God may be all in all. (Thus He will subdue all things to Him)
Philippians 2:10 That at the name of Jesus
every knee should bow, of things in heaven, and things in earth, and things under the earth; 11 And that
every tongue should confess that Jesus Christ is Lord, to the glory of God the Father.
Romans 14:11 For it is written, As I live, saith the Lord,
every knee shall bow to me, and every tongue shall confess to God. (Thus every tongue will confess; and by confession is salvation: Romans 10:10: and in time everything in earth and heaven will believe and confess, and be reconciled into Him and His reign)
1 Corinthians 15:22 For as in Adam all die, even so
in Christ shall all be made alive. (Thus as equally as all dying in Adam, all will live in Christ.)
John 4:42 And said unto the woman, Now we believe, not because of thy saying: for we have heard him ourselves, and know that this is indeed the Christ,
the Saviour of the world.
1 John 4:14 And we have seen and do testify that the Father sent the Son to be
the Saviour of the world. (Thus the Saviour of the world; saving the world)
1 Timothy 4:10 For therefore we both labour and suffer reproach, because we trust in the living God, who is
the Saviour of all men, specially of those that believe. (Thus Saviour of all, not just them that currently are saved)
1 Timothy 2:3 For this is good and acceptable in the sight of God our Saviour; 4 Who
will have all men to be saved, and to come unto the knowledge of the truth.
Isaiah 46:10 Declaring the end from the beginning, and from ancient times the things that are not yet done, saying, My counsel shall stand, and
I will do all my pleasure:
Daniel 4:35 And all the inhabitants of the earth are reputed as nothing: and
he doeth according to his will in the army of heaven, and among the inhabitants of the earth: and none can stay his hand, or say unto him, What doest thou?
Isaiah 55:11 So shall my word be that goeth forth out of my mouth: it shall not return unto me void, but
it shall accomplish that which I please, and it shall prosper in the thing whereto I sent it. (Thus no man resists the will of God: all men to be saved)
Hebrews 2:8 Thou hast put all things in subjection under his feet. For in that he put all in subjection under him, he left nothing that is not put under him. But
now we see not yet all things put under him. (Thus not everyone is yet reconciled to His reign; but will be, since it is written, every knee will bow)
But then in light of these some will ignore all of them, and cite a passage containing the word "fire" which is able to be used figuratively (and often is obviously used this way) and of a saving fire (1 Corinthians 3:15); also ignoring that Jesus always spoke in parables (Matthew 13:34) and so His words concerning fire should be understood figuratively. They also ignore that there is not a single passage teaching "endless suffering" in any of these. So they basically ignore the myriad scriptures teaching universal reconciliation, which are not by way of parable; then cite verses from parables containing the concept of "fire" as though they are not parables, then attach the idea of "endless suffering" to their literal understanding of the parable which in no way teaches "endless suffering" and all for what? To paint a picture of God that causes mankind to flee from the God of love? (2 Corinthians 13:11)
No offense intended, but by way of scripture these would be "devils" teaching a "doctrine of devils" since the word "devils" is from "diabolos" meaning "to slander/falsely accuse" and their doctrine slanders the loving character of God, and falsely accuses God of doing unspeakable things. Again, as I've said before, this is also "blasphemy" since the word itself means to "injure the fame/name/reputation" and this doctrine does great injury to the reputation of God.
People cannot see what they have made up their minds they don't want to see.
I believe it is the people teaching endless suffering that have made up their minds to see something not at all in the scripture; something that for some very odd reason they wish to see. Why anyone would wish to see endless suffering upon them that they allegedly love is almost beyond me, expecting that I also believe in absolute sovereignty which means their mind is being made to behave in such a way by God. This is the only explanation as to why men would not only believe such notions which have no scriptural support, but believe them in spite of both the scripture teaching universal reconciliation, and, reason itself which makes one to understand that the notion of "endless suffering" violates the very concept of reason on every front.