disabled people are worth whatever cost or resources is needed to keep them alive. disabled people are worth it even if they don't live long. they're worth it even if they will need extra support and resources for every day of their life. they're worth it even if they spend all they life indoors. none of it is wasted. none of it is in vain. time, effort, money, resources spent on a life are not wasted. these things have served their purpose. the joy of someone's existence is not undermined by not lasting forever. there's no meaningful point, some threshold where you can say "okay this is enough. after that it's not worth it." it's always worth it.