I've been the only Jew in my community too much. The more people have the Jewish shared experience, the more geographical mobility engaged Jews who want to tap into Jewish communities will have.
Plus, I believe Judaism in the right kind of growth mode can relieve the pressures on the Palestinians. Israel doesn't know what to do with its large numbers of non-Jews right now. They can't remain under military occupation forever. A Jewish community that can grow by attracting the surrounding people can better afford to give Palestinians the rights and full acceptance into the national project which so many of them want. If Israel says that the Jewish demographic numbers don't add up for it to be able to do that, damn you, before you harm a hair on the Palestinians' heads you'd better work on the numbers!