Earlier quoted context omitted.
I don’t conceal carry but it’s commonly known that you don’t draw your weapon unless you’re shooting to kill. In those situations, if there was time to chamber a round then there was time to escape. If you draw your weapon as a warning or, worse, fire warning shots you’ll be arrested for brandishing at least.
This dichotomy is obviously false though. If an attacker doesn't have a firearm you probably have time to chamber a round, if the attacker misses a shot at you you have time to chamber a round, if you have time to take cover you may have time to chamber a round and then be in an approximately 50-50 situation, etc.
Most defensive uses of a firearms occur at a short distance, less than five yards. It takes very little time to cover the distance. For those who are interested, here is a video covering what it looks like when someone with a knife runs straight at someone at 21 feet, you will see why the idea that people have time to rack the slide is absurd (https://youtu.be/_2zfw_4DYdQ?t=79).