Their relations with world Jewry would become problematical, since their defense interests might clash at any moment with those of other countries where large number of Jews lived. Palestine Jewry would eventually separate itself from the larger body of world Jewry and in its isolation develop into an entirely new people.

Is that really notable today? I’d like to read some sources on that. It seems the diaspora keeps supporting them. For example, the big donors who threatened to stop funding USA universities if they don’t censor the protests.
In EU, I also frequently read about organizations against anti-Semitism amalgamate pro-Palestinian sentiments with anti-Semitism.