Correlation does not equal causation.
When people get into a place where they might consider suicide, they are more likely to go through with it if they lack a support system.
Religions have a built in support system. They can even go to a church, synagogue or mosque in another city besides their own and have the same support system.
Atheists don't commit suicide more because of their lack of belief in gods, it's because they tend to lack the type of extended support system that theists have.
When people get into a place where they might consider suicide, they are more likely to go through with it if they lack a support system.
Religions have a built in support system. They can even go to a church, synagogue or mosque in another city besides their own and have the same support system.
Atheists don't commit suicide more because of their lack of belief in gods, it's because they tend to lack the type of extended support system that theists have.
You'd believe if you just opened your heart" is a terrible argument for religion. It's basically saying, "If you bias yourself enough, you can convince yourself that this is true." If religion were true, people wouldn't need faith to believe it -- it would be supported by good evidence.