What you may not be appreciating is that reconciling with something still means accepting a loss, of having had something taken from you, in some cases. Refusing to accept it can mean insisting on the importance of what was lost. This is a sensitive area for disabled/chronically ill people. I was promised a 'normal' life as a teenager prior to the negligently-performed operation that disabled me. As disabled people in society, we are seen as lesser, as not fully human, as though 'normal', full human life doesn't apply to us, isn't even something we have a right to desire.

Absolutely, they should have every right to kill themselves if they so wish, suicide is an issue of bodily autonomy. Maybe check out philosophical works on this subject. It's not a taboo question. Camus' Absurdism presents suicide as not the answer, but as 'the only really important philosophical question'. I love Camus, I would absolutely put his work in front of a sufferer of chronic illness before any work of stoicism written by some Roman Emperor. Camus contracted TB, he went from fit and sporting to living under the shadow of death, he knows what he's talking about.

Camus was also very politically active. I'd suggest books about political movements and activism before a book of stoicism, too. Marcus Aurelius directly benefited from people being encouraged to accept their lot in life. Pitchforks are really a far preferable problem solving approach in this case.