"There is little evidence about this at present, because the Nazi persecutions have made it necessary for any thinking person to side with the Jews against their oppressors. Anyone educated enough to have heard the word ‘antisemitism’ claims as a matter of course to be free of it, and anti-Jewish remarks are carefully eliminated from all classes of literature. Actually, antisemitism appears to be widespread, even among intellectuals, and the general conspiracy of silence probably helps exacerbate it. People of Left opinions are not immune to it, and their attitude is sometimes affected by the fact that Trotskyists and Anarchists tend to be Jews. But antisemitism comes more naturally to people of Conservative tendency, who suspect Jews of weakening national morale and diluting the national culture. Neo-Tories and political Catholics are always liable to succumb to antisemitism, at least intermittently."
January 1, 1970
https://en.wikiquote.org/wiki/Antisemitism