This is from the ADL website:
ADL publishes the 1952 exposé, The Troublemakers, documenting how Arab propaganda in the U.S. explicitly sought to foment anti-Israel and anti-Jewish sentiments.
In 1950, there were 158 million people living in America and the Muslim population of America was only 200,000 = 0.12% and the American Jewish population was 5 million = 3% and therefore, the Arabs in America in 1950 were no match to the American Jews in numbers or in their skills in fabricating and disseminating propaganda. The ADL was manufacturing a non-existing threat from the very tiny Muslim population of America in order to garner donations!