Aside from some major religions mandating the expansion of humanity (or at least their faithful) - which I suppose could be hubris in the religion - why is it e

Aside from some major religions mandating the expansion of humanity (or at least their faithful) - which I suppose could be hubris in the religion - why is it excessively prideful to want our species to continue to exist? What moral framework accounts for a desire to continue our existence in the negative column?