@Department_Of_Agriculture has attemped to answer other points and, although having been asked several times, he has deflected his answers away from this particular controversial statement. It is time he responded to it
Who knows the owner of the museum? If he does identify himself as a Jew and is proud of being one, then I don't think that DOA is being antisemitic. It's like stating a fact.
Sometimes it could also be a cultural thing. What is offensive to westerners may not be to Asians. For example, it's not uncommon to identity someone based on their race/religion in a small community rather than by name among the older generation. It's not by malice but simply as a form of identification. For example, my dad usually call one of his friend as "keling-kia huan" which translate as Indian Muslim. And among that circle of friends, they know who my father is referring to.
Although this term is not often used nowadays cos some find it offensive but its still fairly common among the older folks.