So why the scene with the couple at the start? Why is Elizabeth analyzing the bathroom situation?
If racism was left in the background sure... but it's brought forward in retarded scenes like that, trying to stir emotional engagement or w/e. They even stick out like sore thumbs, gives the impression someone had to fill a quota. Slaughter, slaughter, slaughter, racism is bad mkay?, slaughter, slaughter, slaughter...
I didn't take the racism stuff as posing any questions. It seemed to me it was just saying "hey this shit was fucked up in 1912." Racism was actually a pretty minor aspect of the game, thankfully. I assumed you would join the Black Panther equivalent and rise up for social justice instead of escaping as the big plot of the game but instead that whole rebellion became a footnote as well and they rather intelligently made the social commentary of power corrupts absolutely instead of silly romantic portrayals of revolutionaries.
The story has a lot of faults but that isn't one of them.