We live in a society either scarred by scarcity or spoiled by luxury. We have no idea how much is enough. We don't know when to quit.
Suicide is an extreme vote of no confidence in a society that doesn't work.
By accepting responsibility, we take effective steps toward our goal: an inclusive human society on a habitable planet, a society that works for all humans and for all nonhumans. By accepting responsibility, we move closer to creating a world that works for all.