Elliott Abrams
In other words, the argument is that if Israel is a “Jewish state” it will certainly, unavoidably, necessarily discriminate against non-Jews. The problem with this debating point is that those who use it apply it only to Israel; no one ever voices any concern about states based on Islam and discriminating in favor of Muslims.
http://blogs.cfr.org/abrams/2011/07/14/can-israel-be-a-jewish-state/