Why would I allow a murder suspect to kill me? TO make people like you feel better about your local cop? Screw that crap.
"Had he exited that vehicle with anything in his hands or made any quick movements, I would not have hesitated to shoot him."
- You have the advantage of being able to legally carry a gun pretty much wherever you want
- You have the advantage of broad and sweeping immunity from prosecution if you use that gun to take another life
- You have the advantage of an entire police department ready to back you up or come to your assistance at a moment's notice
- You have the advantage of a criminal justice system that is largely supportive of and deferential to police in general
All of those things give you a distinct advantage in dealing with criminal elements of society, and they do so by design. The members of the general public, by contrast, have none of those advantages when they encounter criminals. So instead of whining about the purported "risks" of your job be thankful for what it gives you. The rest of us don't get to enjoy the privileges you do.