You are right that there is a lot of that going on from those who insist on eternal torment.
This is how the discussion has gone so far:
A: "I don't believe that nonbelievers are tormented in Hell forever".
B: "Why not?"
A: "Because the Bible teaches over and over again that the price of sin is death and destruction, not eternal torment."
B: "What about this verse that says that Hell lasts forever"?
A: "That verse says that Hell lasts forever, but says nothing about people being tormented there forever".
B: "Well what about this verse that talks about weeping and gnashing of teeth?"
A: "That verse is interesting, but once again, nothing about non-believers being tormented eternally in Hell."
B: "Well, what about this verse that says "they" will tormented forever?"
A: "The 'they' in that verse refers to the beast, the false prophet, and the devil, not to non-believers on the whole. In fact the specificity of that verse undermines the claim that eternal torment is the general fate of non-believers."
B: "Well, are you saying that the false prophet is not a non-believer?"
A: "No, I am saying that the false prophet is not all non-believers."
B: "Well, why do keep saying that Hell doesn't exist? I've shown you plenty of verses to show that it does."
A: "I have never said that Hell doesn't exist. In fact, I believe that it does exist and probably lasts forever."
B: "Then why do you keep saying that it's not eternal? If eternal life is eternal, then so is eternal hell?"
A: "I have not claimed that hell is not eternal?"
B: "Why do you keep ignoring what the Bible clearly says?"
A: "The Bible clearly says that the wages of sin is death and the fate of the wicked is their destruction; it never says anything about them be subject to eternal torment."
B: "But what about . . . [repeat the same 4 or 5 prooftexts as before]"
A: [Point out that those 4 or 5 prooftexts don't say what the ETs think they do]
B: "Hmph! Why do you keep ignoring Scripture?!?!?!?"
A: