My personal favorite for flawed reasons is Madoka because I was there for the live reactions to the infamous episode and it was magical watching everyone lose their shit. It was also my re-introduction to anime after being shamed out of it for liking sailor moon as a kid.
kyubey is exploiting young girls into sacrificing their lives to make an abstract number go up while telling them that this is actually empowering. i don't have much beyond that, but you could definitely find a valid reading.