“Suicide rates are lower in other parts of the country where more African-Americans live.”
So, having African Americans in your community reduce your chances of committing suicide?
No. It may reduce the rate of suicide in your community.
No.
Living in a rural area that is a snowy frozen icescape in winter will both raise your likelihood of being depressed and alone long enough to off yourself while at the same time drastically reducing the likelihood that African Americans will choose to live where you are.