I am probably just a horrible person, but I just don’t care about the extinction of such specific species. Often a member of one species is practically impossible to tell from a member of a different species save for where the individual was found. I care a lot more if “crows” are endangered than if “efitz’ southeastern marble crested crow” is endangered. [ed: spelling] Also, I suspect that such narrowly defined spec…
These living creatures can't be brought back. Do you have the wisdom to tell which creatures are pillars of their biome? Further, do you alarm when the match is lit and the flame is spreading or do you wait until your home is already aflame? I don't think you are a bad person. I suspect you and I grew up in a time where species dieing out is the norm as opposed to the exception, so it simply doesn't stick out for you…
I live in a country filled with endangered "native" species but after I grew up, I learned that many of them are basically the same as common species in nearby countries, so similar that even the experts keep disagreeing on whether they're the same species or not.
If their numbers are already extremely low for a long time and everything else is doing fine, it's unlikely they're "pillars of their biome".