Society has taught us that any type of nudity is taboo. At our core as humans, we dont have clothes. They are just an adaptation we formed in order to survive and make life more comfortable. Now it has turned into fashion and bullshit like this. Honestly, a nipple is a nipple. I think women should be able to walk around freely without their shirts on, just like us men. It just makes more sense to me that way.
The problem with this particular image is, she didnt have to show any nipple to show the scar. Also, she has the star of david tattoed on her shoulder, which im sure stirred up certain people too. Its all so petty.