I mean, you did said it, so, yeah, you are.
Fortunately our nature also includes propagating our species, but in spite of that we have very nearly caused our own extinction on multiple occasions... Sometimes averted through sheer luck of one single person being in the right place at the right time to avert it.We would be extinct if it were.
During the Cold War we came down to one man's (Vice Admiral Vasily Arkhipov) decision (overriding the unified votes of an all officers on the submarine which he was stationed and was not the captain of to launch nuclear torpedoes at NATO surface vessels) from full on nuclear war between NATO and the Warsaw Pact.
It is, unfortunately, in our nature to destroy each other.