All we need is a bunch of people who don't own guns, have never owned or shot guns, and can't see any reason for guns to exist, discussing gun ownership.
Go to a skeet, trap or sporting clays range, hire an instructor and shoot a few rounds, and then get back to us.
On the issue of using guns for self-defense: Since I don't believe in an afterlife, I feel justified in using a gun to protect my life, in legitimate self-defense, against some idiot, robber, rapist, thug, murderer, or other ne'er-do-well, rather than succumb like a lamb before a lion.
Your mileage may vary.
Odin, Armed King of the Gods