But isn't that just a physical representation of the men in the mural ? They are based on actual characters so naturally would have those physical attributes. Yes it's caricatured, but most visual political comment is (Gerald Scarfe, Spitting image etc)
What is essentially being argued here is that you can't portray any images of Jews in case it offends, in a similar way that you can't portray any images of Muhammed in case it offends.
Or you can't portray any images of rich greedy bankers in a caricature because some of them might happen to be Jewish. Sorry but to me that's using the anti-semite card when it's unwarranted. The mural is a political comment on the banking cartel, it's not a sleight on Judaism.