In my case, I could never even want to endure existence anyway, the thought of existing just doesn't appeal to me and I've always preferred the sound of being completely unaware of everything. And as long as one exists here there will always be suffering in some form with the risk of existing becoming much more unbearable at any moment, in this world there is endless potential for harm where all that awaits for us is the inevitable decay from age.
So in my case the thing that I certainly have a problem with is life in itself, and even if someone found relief from their current circumstances then they will inevitably suffer in other ways, it's just a matter of time. I just don't like being conscious and aware, trapped inside a decaying flesh prison, I have awareness that existing is completely futile.