You know, those who did come would be escaping the craziness of Middle East politics. And, as a bonus, those who did come would also be escaping Israel's government-funded, universal and compulsory health care system.
It's like a twofer. ;-)
Trust me, no Jew feels bound by the last book of the Christian Bible. You are assuming that the US somehow will be a better place to be when all hell breaks lose as described in the last book of the Bible. And all this is not meant to create an argument, just trying to find out were you are coming from