It is absolutely true today that there is far more anti-semitism on the American left than on the American right. My parents told me that American Jews of their generation considered Republicans antisemitic because the Democrats in the 1930s tried to lift immigration quotas to allow Jews from Europe to enter America and the Republicans blocked them. (I don't know if that was in fact true; if it was, it may have had more to do with immigration policy in general than with anti-semitism. I haven't studied that aspect of history enough to comment.)
And, addressing Freepers in general, yes, I know A-rabs are also semites. But in common usage we know to whom the term ant-semitic applies.
The "we're not anti-semitic because we don't hate Arabs" thing is a modern leftist dodge. The phrase "anti-semitism" was in fact coined by a Nazi in the 1930s to come up with a "scientific" name for what had until then simply been called "Jew hatred."
From the article (boldface added):
Jews passionately supported and continue to admire FDR, who denied entry for Jews seeking asylum from Nazi extermination just before World War II. The most telling is the tragedy of the German ocean liner MS St. Louis, whose captain, Gustav Schroder, tried to save 937 German Jewish refugees after they were denied entry to Cuba, by bringing his ship to Miami only to learn that the U.S. refused his Jewish passengers a safe harbor. Finally the Jews were accepted by various European countries and eventually ended up in Auschwitz and Sóbibor, where half of them perished. By refusing to allow Jews to enter the United States Roosevelt offered Hitler a propaganda coup: justification of the persecution of Jews. The Nazis could say that they were not alone in their hatred of Jews; the rest of the world, and especially the United States, did not want them either. Nevertheless, Jews voted for FDR and still love him—after all, the New Deal was a giant step toward socialism.
The Jewish vote has always been anti-republican, since long before that, and in fact, when they could find a party to the left of the big eastern city democrats, then they went with it, for instance in 1920 America, the Socialist party won 38% of the Jewish vote, while only winning 3% of the overall vote.
See post 55, actually dates to the late 19th century. The antisemitisch party.
Another of those pro-'Rat, pro-Roosevelt myths that seem to get passed down from generation to generation in too many Jewish families!
Fact is that Democrats had such wide majorities in Congress following the Roosevelt landslide in 1932 and continuing through the remainder of the 1930s (although Republicans did make significant gains in the 1938 mid term elections) that Republicans couldn't block anything, even if they tried. The so-called "isolationist" movement, which was associated with restricting immigration, was bipartisan.