Earlier quoted context omitted.
You missed the "developed countries" dogwhistle, which usually means rich and white nations.
is there a better way of describing the group of countries where it is unlikely to encounter criminals with lmgs mounted to pickup trucks?
Pretty much nobody likes to think that way though because the majority of the time "developed nations" are brought up it's in the context of how the US should be more like western Europe and it's usually ideologically convenient to leave Eastern Europe out of those kinds of comparisons.