I really like the self perpetuating optimism loop thing in the reply to Aella, it's like a whole new cognitive bias I hadn't thought applied to rationalists.
I also still believe academia is a deeply broken culture. I believe this in large part because most academics have told me this.
You seem to believe uncritically what they tell you here. The truth is, everyone LOVES to complain but if you tell them "THEN LEAVE??" they'd rather keep their position. And it's very normal, actually. most systems (idk, liek law, healthcare, environmental protection) are “deeply broken.”
Maybe you think that only systems worth engaging with are those with self-perpetuating optimism loops? where everyone is so happy and satisfied with the community and activities? If so, it matches really well the intellectual environment I think you are in.