I don't know. If Django can make 160 m domestic and almost 400 m worldwide without help from conservatives and red necks then why couldn't a superhero movie, which has a wider appeal then a quasi-Western.
As one of those conservative people (not redneck, though I know many), I can tell you that we didn't give two ****s about Django killing white people. Big deal. Every conservative I know saw the movie and enjoyed it. Same with Avatar (though most people I know didn't enjoy that, it had nothing do with politics and more with a lame story).
We've accepted long ago that Hollywood has a far-left bias. It doesn't stop us from going to the movies. I'm sure most liberals still enjoyed The Dark Knight despite it's perceived right-wing messages.