That is just not reasonable. People CHOOSE to spend eternity in agony? That does not pass the test of reasonableness.
People choose to either acknowledge God as supreme or else they choose to be their own god. (e.g. "I Did It My Way" - Frank Sinatra)
Heaven is the result of the former choice.
Hell is the result of the latter choice.
People make unreasonable choices every day, some with more severe and permanent consequences than others. They do so even when they understand those consequences, although usually with the attitude of "Hey, I can beat the odds!"
My wife had cancer a number of years ago. The surgeon cut away part of her body and destroyed the cancerous part. Perfectly reasonable once you understand that the goal of the cancer was to take over the entire body and consume it.
Lucifer decided to "Do it his way".
"How you have fallen from heaven, O star of the morning, son of the dawn! You have been cut down to the earth, You who have weakened the nations! 13"But you said in your heart, 'I will ascend to heaven; I will raise my throne above the stars of God, And I will sit on the mount of assembly In the recesses of the north. 14'I will ascend above the heights of the clouds; I will make myself like the Most High.' Isaiah 14:12-14
Lucifer (Satan - the word means "adversary") rebelled against God and brought Sin, which God will deal with on His timetable, not mine or yours. God will deal with Lucifer's rebellion and the rebellion of individual people.
People do have a choice. As the Knight Templar told Indiana Jones, "Choose wisely!"