The point is the notion that police should fear for their lives during every interaction with citizens is fallacious, whereas you seemed to imply it was a justifiable mindset due to the prevalence of guns.
I never made that point. My point was that police in the US fear for their lives more than cops in Canada do because of the far higher prevalence of guns in the US. There's no way this isn't a factor (among others) for why cops seem to be more trigger happy down there.
If I as a Canadian fear for my life more while in the US I don't see why cops wouldn't also. The gun ownership stats and gun shooting stats are clear. I don't see how it's not safer to be a cop (or a private citizen) in BC than in California based on the gun stats.