It is interesting to note there are about as many Jews in the US as there are in Israel. There are about 7.6 million Jews in the United States [1]. There are about 8 million Jews in Israel [2].
>>abnry+(OP)
The context for "safe haven" is the end of WW2. Most of America's Jews can date their arrival in the US before then; one of the most common windows is 1870 through 1920.
>>joecoo+u6
Irish-Americans outnumber Irish-Irish nearly 10:1. For a very long time Jewish Americans outnumbered Israeli Jews, if not as lopsidedly.
Around 1AD, the greatest concentration of Jewish people was Alexandria, Egypt, where they made up 1/3 the population, not Jerusalem. The actual history of the Middle East defies simplistic narratives.