You are indeed wrong. Many populations are thriving. Some examples local to me: black bears, cougars, grizzly bears, various species of deer and a couple of elk herds. Climate change won’t affect these animals much, especially here in BC. They may end up migrating north a bit but bears in particular are incredibly adaptable animals.

I'm not a scientist nor have I studied ecological effects on species, but you're statement is definitely too strong.

Its probably unlikely that all non domesticated animals will die in the soon (next 200yrs) future. Beyond that it's just beyond unpredictable, because the challenges of that time haven't even been identified yet.

We still don't know if climate is a loos coupled or strong coupled system.

Could go either way. Lets try nothing otherwise we might create a sustainable environment with healthy air, energy and more animals for nothing.

The problem isn't just due to climate change. It's also due to the constant destruction and expansion into natural/wild areas.

Nobody knows the future. Sperm whales benefit of our overfishing so they recovered really fast. Hector's dolphins are hurt by our overfishing, so they are in big trouble.