Life always leads to death. Birth leads to life. Conception leads to birth. Parents are responsible for conception. Ergo parents are murderers of their biological children.
Pure logic.
Prove me wrong
You can't kill someone that doesn't exist. If someone doesn't exist, does that make them dead (No)? But if you are dead, do you exist? Presumably no. I don't think murder is as plain a definition as it seems.
On a side note though, the majority of parents give their children tons of terrible influences.