There is one of the most ridiculous, half-arsed, 'let-me-put-words-in-your-mouth' posts I've seen.
Congrats.
The differences are as follows;
1) All buildings here are subject to fire regulations and inspections. A lot. I'm not asking for a gun ban, merely pointing out we have regulation of guns.
2) When I point a gun at someone and pull the trigger, there is a direct connection between intent-action-consequence. That is not necessarily the case with arson, and is commonly not the case.
3) Deliberately lit fires have killed a lot of people here. It's a major issue. That page includes a single instance, because...well...it's a wiki page. There doesn't need to be any science behind what's included, does there? Like including a shooting where 2 people died, which you conveniently ignored from my post.