Ghettoizing? You call Jews living (almost exclusively) in the U.S., Israel, Canada, and Britain ghettoizing? That's a mighty large ghetto, Torie. .....And a mighty fine one. And anyway, they're just not welcome in many of the nations you'd like to them to disperse to. I see no problem with the greatest nation on earth (US) having a virtual monopoly on their talents. In fact, I welcome it heartily.
I have a more catholic view. But of course, the individuals in question should chart their own course, and if they want to come to America, then I would favor legislation to facilitate that. But we should not be selfish with such extraordinary talent.