[easyG]

Well said, PBP. And I'd add that there are any number of ways for citizens to look out for their communities: volunteer to... help at-risk kids, work at a homeless shelter or food pantry, be a guardian ad litem, teach hunter safety classes for the DNR, deliver Meals on Wheels, give blood... the list is endless.

With the possible exception of helping at risk kids, none of those other things help to reduce crime.

If someone's idea of how to help their community is to fantasize about "taking criminals off the streets," or whatever, and they're not already doing some form of community work along these lines, I have serious questions about their real motivation.

Nobody has said anything about "taking criminals off the streets"....
I'm talking about not running and hiding when criminals threaten you or invade your home.
There's a world of difference.

But your right to self-defense is no more than that: a right to protect yourself, not to harm others without needing to do so. If retreating is an effective way to protect yourself, you've just exercised that right.

You're confusing the "Right to self-defense" with the "right" to run away.
Castle doctrine is not about running away.
You cannot run away and honestly say that you defended yourself or your home.
You can only say that you were a victim of crime and a survivor because you ran away.
If that's your goal, then fine, but it has nothing to do with firearms or self-defense.

But there is also an obligation to make sure, if possible, that no one else is hurt through your own action; and that should include the person who is threatening you,

No, you are not obligated to make sure that the person threatening you is not hurt by your actions.
This is total nonsense.