It is tragic that the child died, it is tragic that the social security and mental health people were not able to prevent it. But the way that the "news" is reported is deliberately aimed at making people think that BP, crazy and religious people are a danger to their children...
About the stigma,
I am careful about who I tell, but I do tell lots of people, including my work. As far as I am concerned it is part of who I am, it has good parts and bad parts so you either like it or leave it. If someone is going to react badly to knowing that I have BP, then they are not worth bothering over.
I do worry about what will happen when I have kids, but I will try to make sure I have adequate support to call on if things get rough.
on the religion thing, I believe in God regardless of my mood, so if it's a delusion, then I'm deluded all the time