Okay and now I *am* going to natter on. Since you can't see how your approach failed, let me point it out. This
is an effective response when someone admits they were wrong and this
is an appropriate way to present an opposing viewpoint, what you wrote was neither of those things.
While you did "[invite me] to consider whether [my] position would change if [I] knew one of those victims"; you also, immediately before that, managed to insinuate that I didn't give this any thought, rather than accepting the possibility that I was working off of incorrect or incomplete information, as was the case, and took the liberty of making another bold assumption about me; I'll leave it to you to figure out what that assumption was and why you were wrong to do so.
Stating that you disagree with me and providing your opinion, as you did in the first paragraph of your initial reply to me, was spot-on. Everything you've wrote after that was inflammatory, and I think you know that. Stopping at the end of your first paragraph would have garnered a more positive response; simply, me stating that I had actually been presented additional information and an alternative viewpoint on the subject, and had already reconsidered my position. I would have had nothing to call out out on and, therefore, would not have done so.