If homo sapiens is to survive, we had better have the capacity to see the truth even if sometimes the messenger of that truth falls to human faults, like exaggeration or even straight lies.

That's just how things are. If we depend on the side that warns us of climate change to never make a mistake or an intentional wrong, we're cooked. Because that side is human as are all sides of all arguments.

Maybe we are cooked. That's how it looks to this clueless person.