Oh yes, you’re right, sorry, I read the OP and then came back to respond a couple of hours later. I blame my headache. :smack:
To start with, if ‘humanity’ is wiped out, then an awful lot of real-life humans will be too. It’s not just abstract ‘billions,’ it’s real mothers, fathers, children, sisters, friends. I won’t know any of them personally, but I didn’t know anyone in the Turkey earthquakes either, and I still sympathised with them. Attempting to preserve humanity also necessarily means preserving the lives of billions of real people.
gobear’s Babylon 5 quote made the second argument:
‘When that happens, it won’t just take us. It’ll take Marilyn Monroe and Lao-Tzu, Einstein, Morobuto, Buddy Holly, Aristophanes …’
I won’t be remembered in 1000,0000 years’ time, but it’s likely some of these people will be. Their stories will be wiped out too - and all our histories, all our progress, all our mistakes, everything forgotten forever.
Finally, as xtisme said, on the information we have now, we are the only sentient species in the universe. Therefore preserving humanity could also mean preserving sentience itself. It is one thing to argue that humanity isn’t worth saving, it’s another to argue that sentience itself should be destroyed.
So ‘preservation of the species’ includes individual humans at the micro level, sentience at the macro level, and all of civilization in between. That’s an awful lot to lose.
*generic you, not you specifically