FishermanBob writes:
You know that Judaism is a religion, not a nationality or a regional affiliation like say, Eastern European or Israeli, right?
You know that by implying Eastern European Jews are supposed to "look a certain way", you reinforce every hateful, anti-Semitic stereotype people have of how Jews look or are supposed to look, right?
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Bob, I respectfully disagree with your implication that European Jews don't make up a particular ethnic group. Yes, "Judaism" means the religion, which can include people whose ancestry is anything, but most Jews had ancestors who came largely from Eastern Europe, although, as you point out, there are many Jews whose families came from Hungary, me among them.
If you don't think that Jews make up an ethnic group, take a look at old family photos of people who were born Jewish. Many share similar features, including dark, frizzy or curly hair, lip shapes, etc.
Anti-Semites think they can identify Jews by their looks, but Jews often think the same thing -- we jokingly call it Jewdar. It's not so much that someone looks stereotypically Jewish, but more that the person looks like a Jewish individual with whom we're acquainted, or speaks with particular intonations that probably originated with Yiddish-speaking ancestors.
Getting back to the question of Kelly Clarkson and Fanny Brice, Kelly Clarkson does not look at all like Fanny Brice, or sound like her, either. A talented actor of any ethnicity could do the New York intonations, but I doubt Kelly Clarkson can master the correct speech pattern. The other actors you mentioned do look like they could be ethnically Jewish, and therefore looked fine for the parts -- heck, I have a black colleague whose looks are such that he could easily play Jews, Greeks, Italians, Arabs, or numerous other ethnic characters, because his ethnicity isn't obvious from his appearance.
I doubt you'd cast me as a Swedish character -- with my frizzy, dark hair and my being under five feet tall, I just don't look the part. Why is it any different to cast Kelly Clarkson as a Jewish character who looked very different from her?
Audrey, the Phantom Phanatic, who nonetheless would rather be Jean Valjean, who knew how to make lemonade out of lemons.