If you didn't have them, what a shame it would be. I think you have some idea of how much intelligence and talent you have, which means you bring (much) value to the world. So it would be a shame.
But you do have them. You do have those responsibilities and they are, to an extent, self-imposed. After all, how many dads, husbands, brothers don't just bolt for much lighter reasons? Which suggests the world also has value for you.
It's commendable, your honesty. I imagine it's not easy to say these things here or anywhere else, so thank you for saying them. For letting someone see. I hope you keep doing that -maybe those groups would be helpful, indeed. Why not at least see if there's something of value there?
People who kill themselves do so, it seems, because they genuinely believe the lives of their loved ones would be better off. They never are. Never. Which obviously is hard to see when you've got poles in your eyes, so I guess the only thing to do is remind them they're wrong about this (it's enough to lose anyone who really matters to know that hollowness never means better off) and that they can and will get through it. Blatantly obvious that people with giant poles sticking out of their damn eyes should not operate heavy machinery or make big life decisions either way ;)