I agree with those who suggest that it is not wrong to say such a thing, but I would also argue that by the definition of racism often used on these boards, it is racist.
Such a statement takes presumed traits as covarying with ethnic group strongly enough to be used as a predictor of likely group membership, which is nothing less than the flipside of inferring a likely trait based upon group membership. Unless their is evidence that the speaker is singling out only negative traits with intent of being insulting, then whether the trait happens to be positive, negative, or neutral in valence should have no bearing on whether the statement is racist. Also, whether the generalization is objectively accurate is also not a relevant to whether it is racist.
What you'll often hear is that its okay to talk about physical traits but not behavioral or psychological ones. This is usually rooted in the unscientific notion that behavior and psychology is not heavily a product of biology. The objection also seems tied to the false notion that pointing to behavior-ethnicity relations is to claim the link is entirely biological. IOW, objectors simultaneously deny the biology of behavior and falsely assume any mention of ethnicity and behavior is a claim about pure biological determinism.
You are walking down the street at night past a black guy and a white guy. Neither guy is likely to rob you, but if one of them does, which one is it more likely to be? IF you say "the black guy", then you are objectively correct and rationally applying facts about relative likelihoods of such acts, yet many here would also say you are a racist for saying this or for making any argument that applies this factual knowledge.
In fact, this statement is likely less racist than the OP statement, because the difference in probabilities could easily be larger for mugging behavior (about 4 times greater for the black guy), than it is for a facial feature belonging to a Jew versus a Non-Jew person from the Middle East.
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Dude ... note the smiley
That smiley looks Jewish.
The one with the question marks looks more agnostic.