It’s a comic book movie, so Killmonger has to be an extremist, because he’s the bad guy. But tbh he fits neatly into the established framework that has been used for Magneto forever - his complaints are valid, his solutions and methods are understandable given his personal history, but that doesn’t make him right overall.
Like I said before, I thought the movie was actually more radical than folks are giving it credit for. They very specifically spell out that the loner assassin who thinks of nothing but destruction is something that America made him into. T’Challa is a centrist relative to the guy who wants the entire world to burn, sure. But Black Panther the film is also very much about the recognition of privilege and making a case that having privilege also means having an obligation to help people who are disadvantaged. Like, I think that’s an angle that I haven’t seen mentioned in the discourse much - the Wakandans lived experience is nothing like any of their neighbors or other people who share their skin color, and they have to learn to give a fuck. Killmonger is working through a heritage of shared Black identity that the Wakandans simply don’t share. That’s part of why I said, upthread, that it’s a very American and African-American film in its’ way.
I think the movie did do a pretty good job of setting up the Wakandan’s coming to believe that their monarchy, and their way of choosing a monarch, is fatally flawed and probably needs some serious reform.