Well, seeing as I would not know in advance just what was going to happen, that would temper my response somewhat. Yes, I would protect my own first. You may consider that a weakness, or lack of virtue, but I would die for my children. Having said that, if I knew that MY death would save others, then I would die (at least I HOPE I would - we never know what we’ll do when push comes to shove). But I would protect my child. I don’t fault that poor woman at all.
You are studiously ignoring the main point...would you de facto kill other people's children to save your own?