Of course it makes everyone angry. But would you be as upset and angered if they did a movie about the Spanish Inquisition? How about Irish laborers sold into indentured servitude? Or prisoners beaten, starved, tortured, then dumped on an island called Australia to fend for themselves? The holocaust?
Pick yer poison, dude. It happened. And it is STILL happening the world over. Someone in your neighborhood is probably a child molester....or maybe in to girl slave trade....Boko Haram...stonings in the ME...christians in the arena for entertainment.....get my drift yet? Shit happened and shit will continue to happen. Have ANY of us learned from the past? Nope. But you go ahead and have anger at something you had no part of, nor your family were involved in, etc etc etc.