Islam is a religion, and a significant number of Muslims are Asian. For instance 99 percent of Indonesia is Muslim. For all we know the woman on the train was very pale and blue eyes, and her suppressive head cover gave away the religion. I recently saw a man and his Muslim wife (she had the head cover) and their preschool daughter who had beautiful gold ringlet hair. Unfortunately when she's around preteen age her parents will make her cover up that beautiful hair in public, and she may even by then be brainwashed into thinking this is what she must do.