I am not upholding cowardice as a value and I don't know how you could believe I was, without imagining me saying things I have not said. that seems to be a thing here. "oh I know what this person is thinking" uh no, you don't.
anyway, the limbic portion of your brain is extremely loud and persistent, and principles do not matter to it. it is fight or flight with the limbic system (among other things).
I agree with you in principle, of course, but being human means that you sometimes make bad decisions when the shit hits the fan.