Guns can be excellent defensive tools and provide security.
A woman or a girly man like
@chesus rice might find a gun useful / defensive if placed in a situation where they are over matched physically and there is nobody around, but themselves, to provide protection.
Indiscriminate use of force for BAD things, can be deterred if the thug knows or even thinks his potential victim is armed. This can be illustrated...
If you live in a crime ridden area, and there are lots of break-ins going on, would you rather be armed or not ? If you had a choice of placing a sign in your window which would make more sense...
1) I'm old, weak and feeble and will offer no defense, hey thugs, c'mon in, cash is in the cookie jar, silver is in the closet
2) This home is defended by an armed person, intruders and thugs may be shot, multiple times if necessary.