If you have reason to believe that you need one for self defence, then you have been messed up by being in an environment so dangerous that it has driven you to take precautions that a civilised person would not think to take.
If you own one because you want to hunt animals, well that's pretty self explanatory.
If you own one because you want to hurt someone that is not an immediate threat to your life, again that is pretty self explanatory
..well, especially if you’re black
Also, Nebraska has the highest percentage of farmland of any state and very little public land, which would make hunting difficult.
If someone doesn't want to carry, fine. But historically, nations that give up their guns are sitting ducks for tyranny.