Itโs the most fucked up, shitbiscuit argument that because people have been wrong about apocalyptic predictions in the past (although sometimes only narrowly so), that we should not do anything about climate change.
Thatโs like saying that because you didnโt get in a car accident the last time you drove 140mph down city streets, you should therefore always drive 140mph everywhere.
In other words, total dipshit stuff. A slow toddler wouldnโt buy such arguments, so itโs mystifying that grown-ass adults do.