"Why on earth would someone willingly want to go to hell when they don’t have to, because it is what they deserve? And why would they be offended by another who was willing to take their hell punishment for them?"
Our human nature can’t help but see fault in others. We get so distraught when see what others can get away with, and we come to God with a shopping list of all their indiscretions against us. However, when we see ourselves in the mirror of God’s law, we come to the realisation that we are no better than them. In fact, we are no better than the worst criminal in all of human history.
Our human brain is naturally hard-wired to deflect blame. And our rebellion started the first time we said “I don’t know!” when our parents asked us how the kitten ended up in the toilet bowl. We don’t like to admit fault, and we employ any means necessary to escape punishment for it.