What we're having is a crisis of legitimacy, if we want to talk about it as politics. So we ought to discuss it.
The incumbent position, the basis of hegemonic power, the focus of conflict in the 20th century, whatever you want to call it, was over control of fossil carbon.
It turns out fossil carbon based industry destroys habitability, _has_ destroyed habitability (some of it; we don't know how much because big planet, much lag), which renders it illegitimate; nothing is worth extinction.