He was getting a free flight from his airline because he was a pilot.
Think it was a cargo plane so he was one of the only passengers. He freaked out, entered the cabin, and started trying to crash the plane. The actual pilots had to hit him with a wrench or something I think to stop him.
This sounds like the FedEx hijacking attempt, flight 705.
That's a strawman of doomerism. There's as many different opinions as there are "doomers", but most are probably in the realm of "do what we can to reduce the damage, but the science and math is saying we're way past any great solutions." I guess some would call that realism to separate it from the doomer label, but whatever it's called, that's where we are.