The reason it's 'politicized' is because it's a big-budget blockbuster with a primarily black cast. That's not something that happens, because studios have always played to the median population under the expectation that audiences wouldn't watch emptier entertainment that didn't directly reflect themselves...something that has led to plenty of 'whitewashed' characters in adaptations in the past. Films like 12 Years a Slave and the like are catering to a different, smaller audience, with budgets to match; it made $50m at the box office, whereas the most recent Avengers movie had a budget of $300m, and made $1.4b in receipts.
What makes Black Panther important is that it looks likely to disabuse the notion that the coveted younger adult market will only turn out to a popcorn movie that is Americanized and centered around either white primary protagonists, or non-white actors who have, ahem "crossover appeal" for white audiences. And thank **** for that; I don't mind superhero movies, but they're pretty generic save for when they veer away from the normal formulae, and anything that convinces the studios to invest big in something other than the safest path is a good thing.
What makes Black Panther important is that it looks likely to disabuse the notion that the coveted younger adult market will only turn out to a popcorn movie that is Americanized and centered around either white primary protagonists, or non-white actors who have, ahem "crossover appeal" for white audiences. And thank **** for that; I don't mind superhero movies, but they're pretty generic save for when they veer away from the normal formulae, and anything that convinces the studios to invest big in something other than the safest path is a good thing.