Yes to everything except the gun control.

In what world does legitimate need for a gun include unlimited guns per owner? In what world does a hobby count as a legitimate use? (both things that lead the shooters to having the guns in the first place).

Sorry gun hobbyists, get a new hobby. Like how is it a sane position that you can have a hobby that puts the community at risk. Do archery ffs. It’s way cooler and you can’t kill a bunch of people in rapid succession (I mean, unless you’re Legolas)

Collecting every element as a hobby could be done responsibly, but we don’t allow that either, and for good reason. We, as a society, deem it an unacceptable risk.

Unfortunately this tragedy will be co-opted for the other bad things you mentioned, but tightening our kinda loose gun laws is not one of them.

Farmers, the military, specialised police and animal control need a certain amount of guns. The current laws do not achieve this.