It's a personal thing I feel. At the moment- no- I can't justify doing it. I feel like my Dad would be devastated. Is it justifiable to knowingly devastate someone? Not really. That's more though because I do feel like I can tread water for now. I hate it but, I'm not in unbearable pain exactly. Perhaps if my situation worsens, I'll feel differently and the balance will shift. I deeply resent this emotional trap I've been born in to though.
As an overall concept, I'm an anti-natilist. So- the 'problem' reaches back to then for me. Is it 'justifiable' to bring a life into such risky circumstances and then expect it to stay here- even if it finds that life intolerable? No. That's an unreasonable burden to put on a sentient being. Most especially one that is prone to sickness, mental illness and exposed to a world where they may be abused, assaulted, bullied, exploited. Where they may simply struggle and fail to adequately survive.
So- the choice to create life and the expectation/ stipulation it must stay here (I feel) is just- if not more unjustified as a person choosing to quit/ escape. Why is it unreasonable to want to escape a painful situation?
Ultimately- it's something they ought to have considered before bringing life here: What if my child is so unhappy and struggles so much that they end up wanting to kill themselves? Is it 'justifiable' to expose a being I love to that risk? Again- no. At the abolute minimum- we ought to be able to leave peacefully if life is intolerable for us.
Is it justifiable to run an experiment with a sentient creature where they may find themselves in pain but, it's also painful and risky for them to attempt to exit that experiment? Surely- that's unethical. What's the goal? Because we enjoy keeping them as a pet? Because we want to see how they'll do? What justifies exposing a sentient being to the risk of suffering while not giving it the option to leave? How does that relate to love?
They'll argue that it is about love. They want the person they care about to stay and live a happy life. Can they prove that all people can achieve that though? Surely, if the person themself is saying that nothing is helping- isn't that enough to suggest they may not actually recover? So again- can they justify keeping someone here in pain?
Of course, initially it's based on a variable we don't know. The child may actually grow to be content with life. We can perhaps predict the problems it will face to some extent. Considering genetics, surroundings, financial stability. We won't know entirely though. Plenty of wild cards thrown in in life. It's more I assume that would- be parents simply just hope for the best and, if they do run into hard times, they hope they'll pull through. Difficult times are absolutely ineviatable though.
Where I suppose suicide differs is we can more accurately predict the response to it will be negative. However- fundamentally- what are we actually saying here? We shouldn't suicide because it exposes our loved ones to mourning a death. Again though- parents bringing children here expose them to the pain of losing multiple relatives most likely. We'll very likely experience the death of both sets of grandparents plus, our own parents before we then die ourselves. So- if the prime goal is to protect beings from mourning death- including themselves- parents shouldn't be creating life to begin with! As soon as they've done that, they've created the conditions for suffering for everyone.