It is the case. The onus gets placed on the person who commits suicide, because it causes pain on the family and loved ones. But the family caused pain on the individual by bringing them into existence against their will. Effectively, no matter the way the child dies, the parent is responsible for their death. Inevitably. By having children, it is a murderous act, and sometimes it is committing torture and murder, when the life they lead ultimately shows it was not worth the risk. Russian roulette, not with their own lives, but with the lives of their children. They pointed a loaded gun at you, pulled the trigger, then get upset that the bullet landed?
Having children is such a routine and normal part of life, it's never critiqued or considered from the perspective of the person offing themselves. It's called a "selfish" act, completely ignoring the selfishness of the family. Of course they will die, but they also *got* to live. As if it was some gift that was given to them. It's never critiqued, not really. So what I'm saying is you're held to the standard, but they're not held to the same standard. It is, indeed, the case that they are selfish for wanting to keep you here, in this Hell floating in a sea of blood.
All that said, I hear you. The love they have for you is still real and palpable, and you have an innate sense of loyalty and compassion for that. It was ignorance that brought you into the world, not pure malice. In that sense, they are not at fault. But in the same vein, you are also not at fault for controlling your own destiny. It is simply a side effect of humanity--and life--that we must always hurt each other--no matter what paths we go down: inevitably, we hurt each other.