What am I missing?

On the previous post there are a number of charts related to deaths by gun. Vide:

We have the most deaths per million by firearm (29.7) than any other country. The closest is Switzerland at 7.7.
We own 42% of the guns in the world yet our population is only 4.43% of the world's population.
Yet we are below average in the amount of violent crime.

True, the number of suicides by gun in the U.S. are more than homicides by gun. But there are still a lot of people dying by guns, more than any other place in the world. We need much, much better control.