Is this really so confusing? If you look at the data in a systematic, professional way, the evidence shows that more guns lead to more homicide. If you cherry pick the data, you will always be able to find one city/state/region with more guns and less homicide than another.

I'll ask you again. Do you think the fact that poverty increased in the 2000s while crime dropped proves that poverty and crime aren't linked? If the answer is "yes", you need to get your head examined. If the answer is "no", you need to ask yourself why you jump to that exact same conclusion when "poverty" is replaced with "gun sales".

It seems to me that the only answer here is that you are ideologically rather than evidence-driven. You look at data that supports your ideology, and ignore the rest. And you aren't interested in any of the social science and statistical research, instead you substite your own cherry-picked homebrew "statistical analysis".