Again, it's not the death of the "parasite" or "bowl of salad" that disturbs me, it's the waste of a possibly useful life.
Death is not the only way a possibly useful life is wasted. There are plenty of other ways someone can ruin themselves or others.
a baby does not harm or kill its mother.
Tell that to the people who've died in childbirth.
disabled people == parasite
Depends. How disabled are they?