These strike me as plausible criticisms, and I've seen others say similar things. I've even seen a few experts - not many, but not zero - argue that the current global order is at risk.
What I haven't seen any expert argue for is almost certainly guaranteed extinction for humanity. I don't mean to sound like I'm nitpicking on the wording, but the core problem I'm pointing to here is the game of telephone that gets played in climate science, where "this is a crazy extreme possibility that could happen if everything goes wrong" becomes "this is a realistic worst case scenario that's likely if nobody tries to stop it" becomes "this will definitely for sure happen unless we stop emissions right this second".
What I haven't seen any expert argue for is almost certainly guaranteed extinction for humanity. I don't mean to sound like I'm nitpicking on the wording, but the core problem I'm pointing to here is the game of telephone that gets played in climate science, where "this is a crazy extreme possibility that could happen if everything goes wrong" becomes "this is a realistic worst case scenario that's likely if nobody tries to stop it" becomes "this will definitely for sure happen unless we stop emissions right this second".