Of course, all theological viewpoints that subscribe to the idea of eternal torture have difficulty with why would God create people knowing that He is going to torture them forever and ever and ever and ever... even though they may have only personally sinned for one hour to maybe 100 years. Unless of course a person who holds to eternal torture doesn't have a heart and doesn't care what happens to other people as long as he is saved. Otherwise, I would think that those holding to the eternal torture idea would have difficulty sleeping at night based on what they believe will happen to billions and billions of their fellow human beings, even maybe to some of their family members. And they probably cannot think of anything else during the their waking hours except about will happen to billions and billions of other people.
Here's something to ponder. In the book of Revelation we are told that "this heaven and this earth will pass away", (exist no longer). This heaven and earth includes a Lake of Fire. This "passing away" comes after the millenial reign of Jesus, and the Judgment. Then a new heaven and New earth comes on the scene, and there is no mention of a Hell or a Lake of Fire, because there will be no more sin! Evil and the Evil one, along with all his demons, and all unbelievers were cast into the lake of fire of this "old heaven and earth" realm. Those who were cast into the lake of fire, will simply disappear with the lake of fire when passes away, to be remembered no more.
This new heaven and Earth will not be like the old, there will be no mountains or seas on the new earth. However the new earth must be large enough to support the New Jerusalem that is described as being 12,000 furlongs long, high and wide, a 1500 mile per side cube that descends to the earth. This present earth could not possibly support such a city. The atmosphere of this earth is a mere 150 miles thick. So the new earth would have to be a minimum 1000 times larger than this present earth. The New Jerusalem has a volume of 3,375,000,000 cubic miles.
There will be no marrying or marriage either, because we who are saved through faith are all eternal beings with no need to perpetuate the species. There will also be no faith there, because we will know and thus have no need for faith.