Uber sent a notice that we all had to electronically sign that said firearms are prohibited for drivers. He might be justified legally via Florida’s archaic and bizarre criminal codes…but any self defense professional will tell you, legally, proportional response is a basic tenet of self defense law.
In most jurisdictions, you can only use lethal force, which firearms are considered to be (this is why cops don’t shoot to wound), if you can prove you had reason to fear for your life. Many many people have been charged for over using force in an assault. Martial artists, boxers, special forces are particularly likely to encounter this situation in self defense encounters.
The famous case is a 1st gulf war veteran who was a victim of a home invasion. Training and adrenalin meant he took out one guy, then put two rounds into him to make sure he was dead, like he’d been taught. Only…that was ruled excessive force and he went to prison for intentional homicide.
I would argue, morally, that shooting someone for punching you is legalized murder. I don’t want to be assaulted, I’ve been involved in lots of incidents where I was. It’s not fun or okay. But…unless the guy is trying to kill you, trying to kill him is wrong. Further…by adding guns to the equation you create a culture of escalation. I’m mad/crazy/drunk and want to punch you, but you might shoot me, so I’ll just shoot you first. You see it in nightclub shootings all the time.