This is nothing new, you come to expect it after a while.
This is an ancient anti-semetic trope that claims that all Jews have a secret, hidden, "dual loyalty" to Israel or Jewry or Zion or some such other nonsense (it has been around long before the modern state of Israel) and every Jew is secretly waiting for the right opportunity (or signal from the Elders or whatever) to betray their home country in favor of a mysterious, undefined, greater Jewish good.
The Dreyfus Affair in France is perhaps the textbook example of this particular trope being played out.