"the world was filled with dinosaurs |
The world is still filled with dinosaurs, but we call them birds to avoid hurting their feelings. Does this invalidate your conclusion?
we are all going to die like them |
We are all going to die anyway, and every sane person knew this long before the non-avian dinosaurs were discovered.
unless we become fighters |
I have known for about 60 years that I am going to die, but this fact didn't lead me to become a fighter. From the evolutionary point of view, the important thing is to leave descendants when we die. That's why avian dinosaurs (or birds) are still around; their Mesozoic ancestors did leave descendants.