The internment camps are arguably the best thing to happen to the Orcs. They were fed, they had a place that wasn’t corrupted by fel magic to live in, and they were educated in superior human culture. Thrall, the greatest of the Orcs, used his human education to reforge the Horde into something that might resemble a proper civilization. That all got thrown out of the window when he left and the Horde returned to their self destructive culture.
One of the biggest problems I have with people bringing up internment camps as a reason to hate the Alliance is because the camps were the best solution King Teranas had. What were they going to do with a people that know nothing than to destroy? There’s also the issue of the story writers not even making the Alliance do anything “dirty.” This causes the pro-Horde to always come back to internment camps as if they were a bad thing. The camps are never brought up a reason to hate the Alliance in the game. Why should I, the player, care if the characters don’t.