Or not?
Living another miserable 30+ years is a worse way to go than a gunshot.
Sad for those who care, but when you've been considering it over and over again and nothing helps, maybe it should be an option.
I have a lot to say about this, as I am a phone volunteer at a crisis center where I routinely have to address all manner of issues, suicide being one of the most serious of them.
I'm limited by time right now, so what I will say is that, based on what I've seen fielding calls, suicidal people are largely suicidal because they are seeking relief from a feeling (or lack thereof). In large part, having someone to whom they can talk and trust is paramount. Just listening to someone actively (paraphrasing their feelings) is a form of relief in and of itself.
When I'm on the phones, I don't try to take away the option for suicide - they are feeling suicidal after all, I am not going to deny what it is they are feeling (in fact, I do the opposite and will openly talk about that suicidal feeling) - but I also sit there and just exist for them. It doesn't always help, but by and large I've found that just being there can provide immense relief. (I should add that I do more than just listen, but active listening is the number one component to what I do.)
I think that's a far-cry better than permanently removing that pain. Suicide is an option, but it isn't the only option.
We certainly shouldn't, as prodmerc seems to be doing, say, "Oh, they want to die. Good for them." and walk away. Personally, I'm glad you and prodmerc weren't my friends 10 years ago.
Speaking personally, I know a lot of people who have had thoughts of committing suicide or have made an unsuccessful attempt at doing so and in every case it was an erroneous decision, in every case their future was full of a lot more than years of misery.