I have very curly/frizzy dark blonde hair. I'm not Jewish, and one of the first ways I learned about anti-Semitism and about how conflicted some Jewish women feel about curly hair was when I was 13 and living briefly on the East Coast. In the first week of classes at my new school I was teased relentlessly about having "frizzy Jew-hair". I was hurt but also baffled, I'd never heard of such a thing. It got even more complicated when students who were Jewish assumed that I was Jewish because my hair was so curly. I thought they would like my hair, but instead they were some of the nastiest teasers, nagging me to "do something" about my hair.
It was bad enough to be a curly growing up, I can't imagine how much worse it is when your hair makes you a target for racism and religious bigotry.