The deadliest anti-Semitic attack occurred in 1939 when FDR refused to let the MS St. Louis of the Hamburg America Line dock with its over 900 Jewish refugees from Hitler's Germany.
The ship eventually had to return to Europe and it is estimated that over 200 of its Jews ended up being exterminated in the camps.
So much for the Jewess's sonnet:
"Give me your tired, your poor,
Your huddled masses yearning to breathe free,
The wretched refuse of your teeming shore.
Send these, the homeless, tempest-tost to me,
I lift my lamp beside the golden door!"