Yeah, I suppose you are right, and the suicide rate would remain the same, if they didn't own a gun.
But, I highly doubt it.
The following was from this link :
Suicides . I think the document was made in 2007. So the info just shoots a big hole in your statement.
[h=2]Has Canada’s suicide rate improved?[/h]
Canada’s suicide rate increased in the 1960s and 1970s, peaked in 1978 at 14.8 suicides per 100,000 population, and then fell thereafter. The current suicide rate is 10.2 per 100,000. The suicide rates of most peer countries followed a similar pattern, with the notable exception of Ireland and Japan.
Ireland’s suicide rate increased steadily throughout the 1960s, 1970s, 1980s and most of the 1990s. It peaked in 1998 before tapering off. Ireland’s suicide rate of 10 suicides per 100,000 population in 2007 is much higher than the 1960 rate of 3 per 100,000.
While Japan’s current rate of 19.4 suicides per 100,000 population is lower than in 1960, it increased sharply in the late 1990s—peaking at 20.4 in 1998. An article in Time Online called suicide in Japan an “epidemic” and noted new and troubling trends: “People in their thirties are the most likely to kill themselves, and work-related depression is emerging as a prime motive.”
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Denmark has made the most progress in reducing deaths due to suicide, from 29 deaths per 100,000 population in 1980 to 9.9 in 2006.
Perhaps surprisingly, Canada’s suicide rate has been higher than that of the U.S. since the 1970s, although the gap has narrowed at times. The current suicide rate for the U.S. is 10.1 per 100,000.