Had a Jewish friend, now deceased, told me very similar stories about Roosevelt. We had hours of discussions about as she said “All things Jewish”. Like so many older folks she delved into history.
Died at 99.
[snip] ...citing a passage in the diaries of Treasury Secretary Henry Morgenthau Jr. (who was Jewish). In it, there is an account of a conversation he had with a fellow administration official who told him Roosevelt had told him that America was a Protestant country, “and the Catholics and Jews are here under sufferance.” Medoff also offers an example from the Yalta Conference of February 1945 when, according to the autobiography of Charles E. Bohlen – a senior State Department official who was part of delegation – Roosevelt told Joseph Stalin he would soon be seeing Saudi Arabian leader Ibn Saud. When Stalin asked if he intended to make any concessions to the king, the president allegedly smiled and said the only concession he might offer was 6 million American Jews. [/snip]