That point does not exist in any absolute or objective sense. The question itself assumes that life’s value is only conditional upon certain achievements, dignities, or social recognitions, but that’s a human framework of the worst ideologies of the 20th century. human life has infinity dignity and worth and no one becomes a worthless eater or wrecker because of some lack of meritocratic worth, masculine pride, romantic failure, or economic uselessness.

We literally have evidence of a quadraplegic Vietnamese person who lived 140000 years ago and survived at least 8-10 years after the neck injury. Even cavemen knew basic morality.