Why is it that only now you are depressed? Did you not know you were going to die anyway and human beings as a whole were going to evolve into some species comp

Why is it that only now you are depressed? Did you not know you were going to die anyway and human beings as a whole were going to evolve into some species completely different from us, even if there was no climate change? I believe we have conjured up a depression about this topic because we believe that our ability to stop climate change will be amplified by the pressure of sadness, all the while not logically understanding that we are destined to be replaced either way. You should therefore have been depressed from the very beginning, but you probably weren't. That proves that this idea of humanity being erased is not inherently depressing, nor is moving on with our lives. It's simply the news you are reading that is depressing, not the philosophy behind it.