If a burgler breaks into my house at 2am, one school of morality would argue that my only moral choice is to put do everything possible to avoid killing him, even if that puts me and my family at risk.
I am not enrolled at that school. There are times when survival cancels the finer aspects of moral philosophy
Yes, but there's a difference between shooting that burglar with a taser or disabling him in some other way, and torturing that burglar before execution with a chainsaw.