so it is wrong to kill us. why is it wrong? there are many answers. because then others would loose good experiences with us, or because it makes whoever killed us brutal, or even better, killing is bad because its effect on the victim. the loss of someone's life ends all experiences, activities, enjoyment that would otherwise be ones future. the loss of such experiences and future personal life, which are valuable, or means towards something valuable, to either us or our friends and family. this natural property, that killing is serious wrong because of the loss of ones future, is the best explanation to what makes killing bad. since fetuses have a valuable future ahead of them, they have a right to life, and this right to life makes them human, and therefore bad to kill them.