His foreign policy was largely dictated by a personal animus against Netanyahu and nearly caused massive long-term problems for US security in the region.
In the eyes of Zionists, anyone who thinks that Palestinians must be treated as human beings is considered an anti-semite.
The number of Palestinians who fled the 'Zionist Entity' is about the same as the number of Jews who left Arab countries for Israel. If Palestinians are doing less well in Arab countries than Jews from Arab countries are doing in Israel, then that says something unflattering about Arab countries that have sought to return such Palestinians to a
Judenrein Palestine. Israel has no problem with assimilation between the mostly-Sephardic Jews from the Arab world with descendants of the German- and Yiddish- speaking Ashkenazim who practically founded Israel and established it as a refuge for Jews who could either find no safety in Europe or could get along solely by abandoning Judaism.
Most Arab states have determined that Palestinians are not in the same national classification of themselves even if they are born to the grandchildren of Palestinian Arabs who left the Palestinian mandate seventy or more years ago. The problem isn't that Israel isn't theirs; the problem is that they are not accepted as part of the Arab country in which they live. Such people may have been more welcome in the United States, a truly secular society that does not use (except in pathological exceptions) religion as a division between 'legitimate' Americans and others. Consider that Jews in Israel have made little claim to want to take back large sections of such a city as Vilnius that had a vibrant Jewish community before the Great Satan conquered it in 1941 and soon afterward started killing the Jews.
