When you watch this film you know the agenda they have, and can predict the trajectory of the plot. You're probably right. But going in expecting some lefty BS, you'll be happily surprised because they show the brutal reality of redskins right away. And it may be predictably POZed when they show the character development and transformation of a guy who gradually realizes they are human too. But personally, as someone who dislikes Chinese culture but loves Japanese culture, it's important to differentiate between all the different ethnicities and subcategories. So the film showing that not all Native Americans are the same is not some outrageous thing.
  
Well, there was a badass strong™ womyn character but she (albeit an outlier) was believably so given the context. The self loathing Whites throughout who learn the error of their ways will make you want to smash the TV but that's to be expected. So go in with low expectations and be pleased.
   
I'd say it'd be a shame if you never saw this film, but also you shouldn't support anti-White movies that have revisionist anti-American history. Watch it if it's free.