בס''ד
Jews are not allowed to live anywhere outside of Israel.
Chaim, the Talmud says that a remnant must stay behind in the Galut.
בס''ד
Not true! The Talmud actually says that a Jew who lives outside of Israel is like a Jew who has no G-d. Living outside of Israel, especially now when we have Jewish sovereignty in the Holy Land, is absolutely forbidden. The entire Jewish people are commanded to live in Israel.
It also says in the Talmud that living in the Land of Israel is equal to all the other mitzvot (commandments) of the Torah combined.
During the time of Passover, 80% of the Jews wanted to stay in Egypt. All of them were destroyed by G-d during the plague of darkness. No "remnant" was allowed to remain in Egypt.
During the holocaust, we again witnessed what happens to Jews who refuse to go to the Land of Israel.
And today in America and every other country in the world, the Jewish population is decreasing each year because of assimilation and intermarriage. The exile destroys Jewish souls either physically (like in the 1940s) or spiritually. There is no Jewish future outside of Israel. The exile is a physical and spiritual graveyard for the Jewish people. Only in Israel is the Jewish population increasing every year, baruch Hashem.
If a Jew wants to commit the terrible sin of living outside of Israel, he at least should not gloat about it and encourage others to sin.