[nlnn]

Not in all cases - I know people that don't hold any special place in their hearts for humanity as a whole.

They see human extinction as a possibility to accept, rather than as something to necessarily avoid.

I know a few people like this, and their reasons vary. These range from "if humanity goes extinct, it's god's will" to "dinosaurs went extinct and the earth survived, something else will evolve if we're not here" to "we've shown we can't be trusted to care for the planet, let nature take its course".

In most cases they'd rather avert climate catasrophe, but for the continued habitability of the planet (for many species), rather than for the continuation of humanity.