If all the civilian guns in the USA magically disappeared, would death rates rise or lower?

Only if you are foolish enough to believe that the only thing that affects the suicide rate is firearm ownership.

However, I am confused about something. I specifically restricted myself to American cites, because as you said in a different gun thread …

So why are you now bringing up Japan to mock my cites from two American research institutions? According to your own statements, which I am happy to cite on request, you can’t compare gun control from another country to America. So WTF does Japan have to do with anything here?