[0] WTF is a "criminal" anyways? I use illegal substances sometimes. I drive above the speed limit (like everyone else does) most of the time. Back when I played poker on US sites I didn't pay taxes on my winnings even though I should have. I can think of a ton of examples where I simply do not follow the law and so according to the definition of the word I am a criminal.
Why should you have a gun? It is a personal preference. Like art or poetry. You are free to want whatever you want. If you do not like/want guns, please do not have them. But, please do not impose your preferences on others.