"~90% of species are fucked": it's not the magnitude of the change, it's the speed. The climate is changing on a decades-long time scale, and that's too fast for most species and ecosystems to adapt.
The corollary there is that ~10% of species will be fine, and thrive. Like every mass extinction event the world will look a lot different pre and post-extinction but it will "survive".
Humans aren't fucked. We had pre-industrial humans living in both the Arctic and the Sahara. We adapt the environment to us, and we migrate quickly. If we destroy the environment we can grow food in greenhouses. It'll be crazy expensive, but we'll survive. The speed at which India is currently adopting A/C shows how all but the bottom billion of humans are already adapting to climate change. The bottom billion is fucked, unless the top billion stops whining and starts doing something.
The status quo is fucked. We're a bunch of spoiled brats that think 10% inflation and the end of the world are calamities of similar magnitude. If you want to get a good handle on what true hardship is like, talk to a refugee or a member of the greatest generation. (Do it quick, that means somebody ~100 years old).
Is civilization fucked? It depends on how well it adapts, and what your definition of "fucked" is. (see above).