I think it's important to point out that the big problem here is the rate of change of the system, which is now pinned as having been faster than it's ever been

I think it's important to point out that the big problem here is the rate of change of the system, which is now pinned as having been faster than it's ever been in tens of millions of years. If climate change was slow enough and withheld within the parameters of the chemical processes that biological systems work with, this would be a non-issue. But the rate of change is too high for civilization and for ecosystems to adapt and create the necessary buffers.