[kahljorn]

Happiness and sadness are caused by too many variables. One person could've "lost their son in the war 30 years ago" and offed themselves, while another would've become a freedom fighter and bombed some government building, while another could've just moved on with their life.
So you might be tempted to try to take that single persons suicide and group it with other suicides that generally share the same scenario(not everyone reacts the same) to try to derive some common factor. The only issue with that is, "Not everyone reacts the same". You can't isolate some single principle, because it's not some single principle. It might, at some token, be that they are sad with their existance(and that's such a blanket statement, you could say that about ANYONE, why do puppies cry? They are sad about their existence), but again, some people are sad with their existence and chose to move on. Essentially, there is no blanket statement you could give in an argument like this that would make any sense whatsoever if you were considering all angles, which any reasonably intelligent person should be doing.

Good day.