As a person who has unfortunately been forced to use a firearm to defend the life of myself and my family during a break in where the guy had handcuffs etc, I read this as you telling me we should just be dead. if "you’re rich enough to have your own security service " you don’t need a weapon at all. The rest of us unfortunately may have to defend ourselves. I am aware this is only an anecdotal argument not a statistical one, but as the guy who did not have to watch unspeakable things happen to his family, I’m OK with that.
I always viewed the difference as intent and not mutually exclusive. reason explains your thought process, actions, and events. Excuse are reasons presented in a manor meant to shift responsibility.