This is exactly the kind of pseudoscientific blabber that we could do without. Evolution has no goal and it has zero incentive to produce a "superior" species.
It doesn't matter what you think about the purpose of our existence on this planet and the "evolutionary path", because at least my aim is to survive. Giving up and killing myself through climate change certainly doesn't help with that. You also have to remember that it took about half a billion years for land-dwelling life to produce a sentient species, and that the Sun will, in around 600 million years, be too hot to support the carbonate-silicate cycle that fuels the C3 form of photosynthesis. It might or might not be possible to produce another sentient species in that time, if there is enough resources left after us for the planet to recover.
It is also important to realize that many of the factors that contributed to the rise of culture were caused by easy and abundant availability of resources (fossil fuels, unexhausted sources of rare earths) that will be permanently gone after we have drawn our last breath. Therefore, I would claim that it is not at all outlandish to claim that we are the absolutely only chance for this planet to successfully produce a species that could reach out to the stars. Based on presently available information, ours might also be the only world in this galaxy, which has even produced a candidate for that (considering that were it possible to construct a interplanetary culture and somebody would have reached the prerequisites, we'd likely see massive amounts of evidence for it).
All in all, the stakes are much higher than you claim. Of course you can just be an edgelord and claim that none of this matters, but it does matter, greatly, to anyone else who has the capacity to feel sympathy for their fellow humans and those who are yet unborn. In other words, grow up and start working on surviving instead of being such a nihilist little shit.