Well. Quote action movies all you like, the proof is there. Here's a little tidbit. Most gun related deaths are a result of domestic violence, accidents, and suicides; thus, guns are more dangerous to the owners than to intended targets. It's fact.
Another fact
In incidents where a hostile encounter with an armed criminal occurs, the criminal is often more experienced and skilled with his/her weapon; also, criminals may act in groups. Thus, guns are of little use as self defense for the typical owner.
The presence of a gun serves more often to escalate the likelihood and/or severity of violence.
Also, look at this study and tell me that everyone having a gun would be a good idea.
http://www.hsph.harvard.edu/hicrc/pd...earmdeaths.pdf