"So based on your understanding of this topic, can you explain to me why Mexico - which has pretty restrictive gun laws, I would say reasonably comparable to Australia (and indeed they have about the same number of firearms per capita as Australia and literally two gun stores) - has 4 times the firearm homicide rate of the USA?"
do you reckon the narcotics and people smuggling gangs fighting among themselves may have something to do with it........?
and where do you reckon the guns Mexican gangs use come from.......?