It's an interesting question given humanity's propensity for shortsighted and self-destructive decision making. Glibly, the answer is no. It's not worth saving and should get exactly what it deserves. It is not earning its way as a responsible contributor to the universe.
That, of course, begs the question of what does the universe want? Other than a few fantasies that we've crafted it's unclear. We have values as humans such as order, beauty, and joy. Science is the objective pursuit of discovering order in the universe. Beauty straddles a line between the objective and subjective. Much of what is considered to be beautiful are objective observations with subjective assessments. Joy is entirely subjective and tends to be generated by the orderly and beautiful. These are potential self-centered reasons for humans to continue to exist, but in an of themselves don't answer the question of what the universe wants.
What does the universe want? What if it doesn't want anything? It's just a medium where things like humanity can take root and spend their term? A truly ambivalent perspective is hard to wrap your head around (thus the invention of gods). It turns out that dirt, as an analogy, has a purpose which is to grow plants. These plants eventually die and decompose. Their nutrients return to the soil so that more plants can grow. It's a thing to do and gives dirt a purpose for continuing. Dirt generally doesn't care which plants grow just as long as they ultimately contribute to the cycle. Dirt is a critical component of a cyclic system. Is the universe a cyclic system? Is life a symbiot in the sense that plants are sybiots of dirt? If so, then so far the universe appears to be a desert. The discovery of life elsewhere would add more light to this.
There's a lot to ponder here. What if it doesn't matter if humans become responsible citezens of the universe? We exist to be entirely self-serving. Humanity, like all other life, has a finite lifespan. It will eventually pass away and it's own characteristics may play a vital role in this. Saving humanity is a little like paying attention to diet and exercise. Then what comes to mind is the following cartoon.
Perhaps this is the insight. I dunno.
