[Kaj]

[ QUOTE ]
You're not getting the point of my question. What makes one of these a case where you're willing to use force and the other not one?

[/ QUOTE ]

I said already: my own values. What makes you like blue and not red shoes?

[ QUOTE ]
I'm guessing (hoping) there is a principle underlying this decision making process

[/ QUOTE ]

There is a principle as I've already explained. It is my belief that the world is better off if people behaved as such. That's the principle I am using for my life. You may not share the same principle in yours and that is fine.

[ QUOTE ]
... and you're not just arbitrarily picking on a case-by-case basis as you would when (eg) selecting what type of cheese to put on your burger each day.

[/ QUOTE ]

Why can't I pick and choose my values? Why can't I decide that I believe activity X to be so egregious that I will use force and that I won't do so for activity Y. Is your solution to the fact that life includes arbitrary choices to arbitrarily establish some notion of "rights"? How is that any better? Use REASON dude. Stop pretending there is some non-arbitrary answer here.