I desperately want horrible things to happen to the Westboro folks, and even though I think we should prosecute whoever it is that eventually sacks up enough to actually take some action, I'll almost certainly silently and reservedly withhold any personal animus that I usually feel towards people who do horrible things.
I was talking to a friend about this recently, and I probably don't have it in me to do violent things to other people, but if I could find that capacity in me, I hope I would be able to direct it towards people who make the world significantly worse for everyone else.
Westboro definitely makes the world worse than an average unabashed rapist, and I tend to feel ambiguously when those guys get murdered.