Specifically not going into most of the points as to avoid getting into the type of conversation which made me leave ComicFury in the first place. (I...get passionate. Too passionate. On a subject which--while I am well-educated on--I am rusty on and not the best advocate for.) But this I felt like responding to.
MLai:3. A rifle bullet can cause severe collateral damage as it over-penetrates many urban targets. Which makes it terrible as a home defense weapon. Shoot a burglar? Bullet passes thru him and hits your neighbor thru the wooden fence.
One of the first lessons my dad taught me was along the lines of, "This gun kills your target." *points to a gun which if memory serves, looked to me at the time like it was more powerful and useful*
"This gun
stops your target." *points to another gun which he thought was ultimately better*
Basically, yeah, you're right--it's a bad weapon for defense. Certain guns are better than others. The important factor isn't really killing power, but STOPPING power. (Guns which pass through the target in general have very little of that.) I was taught the difference between the two.