"Everything is futile. Why bother."
Inevitably, my take away is that the world learned absolutely fuck all from have 90% of its population wiped out, if not more. Sure, we could argue that Eren chose the wrong way to teach people a lesson, or that responses of certain characters were very... questionable, plot armor of Gabby aside, but I'd like to have a little more faith that humanity wouldn't fuck itself over. At least not as quickly.
I'm just inclined to say he fucked himself the moment Paradis learned they're not alone. The mystery of the titans and their origins was underwhelming. Some fun could've been had if the setting was a future Earth and not just something suspiciously Earth adjacent. And I can't help but wonder if that was a result of early criticism for what came off as Nazi glorification in the first portion even though that got dialed up to 11 with all the segregation, armbands, and shit. Basically, we had a genre shift from action horror to some kinda action philosophical wank where you can't even make a War Games correlation because the game is lost even if you don't play.