^Umm, you're confusing several different levels of relatedness, and I'm not sure whether you're joking or not. Really, if you go back as little as maybe 8 centuries, all humans are related to one another, because there's been so much intermarrying and common ancestors and so forth. So when we say two people aren't related, we're only saying they have no common ancestors for a few centuries back. Go back far enough and everyone is related on the level of having individual ancestors in common. And of course we're all members of the human species. But when we talk about species being related, naturally that's on a different level than the relationships between individual members of those species. There it's a matter of the species branching off from a common ancestor species.