An indivisible part of evolution is extinction. Without numerous extinctions humans for example wouldn't even be here. The ultimate thing to ask is whether the species or ecosystems that have prevailed now are a mere stepping stone for others eventually to emerge. Or whether this is the final destination. I mean it is clear it isn't but the diversity itself is meaningful enough. Even when most of everything that now thrives will go extinct. We simply think too much. Especially of ourselves.