Does reading a lot of Wikipedia give people a wrong idea how science works?

[FlatAssembler]

It is naive to think that such a complicated problems as gun violence has such a simple solution as gun prohibition. And it is absurd to think that people giving up the most effective way of defending themselves is somehow going to end mass shootings.

(Bold mine)

The real world says differently. Countries with the strictest gun prohibitions (Singapore, China, Japan, South Korea, etc) also have the lowest rates of gun violence. This is NOT a coincidence.

Gun restrictions won't 'end mass shootings', but will reduce overall gun violence.

Boru

But how do you know the causal relationship is not the other way around? How do you know that places that are unsafe don't tend to have more guns because they are unsafe, rather than the other way around? If you were forced to live in a high-crime area, wouldn't you want to get a gun to protect yourself?