From what I know it seems we're headed to about +3C (mean temperature rise above preindustrial). It's a pretty dire scenario. But it's far, far from "too little too late". It seems probably large parts of Earth will become difficult to inhabit (like e.g. Phoenix AZ is today) without things like AC, etc.. But that's very far from an extinction scenario or total doom.

Every little bit we don't emit today will prevent probably several decades up to a century of atmospheric warming before it's extremely costly to remove from the atmosphere back into some reservoir.

Reminder that some fossil fuel companies quite enjoy narratives of total doom and change being pointless.