The clone thing in particular pisses me off like there is no tomorrow, because it actually has a correspondence in real life.
People with identical DNA actually exist: they are called "monozygotic twins". Go tell one of such twins that it's ok if their sibling dies because the sibling is just a copy. Go, I dare you.
Conversely, I find it incredibly frustrating when people talk of "making somebody/something immortal" by cloning them after their death to "bring them back to life". NO. A clone is not the same being brought back to life, it's a different being that just so happens to have the same DNA as the original. The original is still very much dead.