It's Star Wars. The characters have always been tropes. The epic hero who finds the power within himself versus the evil empire. Hell, the original movies are easily likened to such epics as Final Fantasy 6 (which came later).
Most people are complaining because Jar-Jar is a goof, Anakin has a lot of teenage angst, the Jedi Council is entirely docile, Padme flips between a stiff diplomat and a flappy-mouthed chick, etc. Thing is, Jar-Jar is from an entire race of people who appear mentally retarded and act like overgrown children; Anakin was a slave child whose only social life was family life (with his mother) before he was ripped away from her, put up on a pedestal, manipulated by an evil sociopath, put into huge emotional conflicts, then faced with the death of his mother and the prophetic and eventual death of his girlfriend; the Jedi Council is made of deeply orthodox monks who value emotional stability and deep contemplation above all things; and Padme is exactly what real-life diplomats and politicians are.
People wanted Anakin to be this bland, cookie-cutter hero who magically turns villain at a small trigger, instead of growing through emotional turmoil and coming out evil. "Oh no, my wife died! Time to be Darth Vader!" is preferred over "Oh man, my childhood was so hard, there were all these people, saying all these things, I'm so confused, I've lost everything, I'm now just pissed at everything, fuck it all!" How do you complain about a teenager acting like a teenager?