It is.
It's the Jews not supporting anyone else but Jews that has historically been the problem.
Like the British supporting the British supporting the British, the French supporting the French, the Germans supporting the Germans. While Israel is expected to support the world and to hell with their own people, isn't that how you think. Well here is some news for you Israel supported the people it rescued from concentration camps in 1967, it fed them built them schools, Hospitals, Mosques, Universities, Clinics, sewage works, Electricity generators and trained them to use all the facilities. Gave them proper roads and houses instead of tents and dirt tracks. Today it is taking in many hundreds of Syrian casualties and giving them the best of care.
So were is your evidence that the Jews have never supported anyone else but themselves. That is lifted from the NAZI rule book of anti semitic hate phrases word for word.
Italian-Americans and German-Americans fought against Italians and Germans during WW 2.
Can't see Jews anywhere in the world fighting against Israel/Israelis under any condition.
That's the difference.
Another non existent hypothetical and anti semetic canard:
Antisemitic canard
An antisemitic canard (evoking a French-derived English catchword for "hoax") is a false story inciting antisemitism. Despite being false by definition, antisemitic canards often form part of broader theories of Jewish conspiracies.
Dual loyalty
A canard found in the Protocols of the Elders of Zion, but dating to before that document, is that Jews are more loyal to world Jewry than to their own country. Since the establishment of the state of Israel, this canard has taken the form of accusations that Jewish citizens of countries such as the United States are more loyal to Israel than to their home country.
Accusations of cowardice and lack of patriotism
As Jewish Emancipation progressed, new antisemitic accusations appeared. Often Jews were accused of insufficient patriotism. In the late 19th century France, a political scandal known as the Dreyfus affair involved the wrongful conviction for treason of a young Jewish French officer. The political and judicial scandal ended with his full rehabilitation.
"12,000 Jewish soldiers died on the field of honor for the fatherland." A leaflet published in 1920 by German Jewish veterans in response to Dolchstosslegende.
During World War I, the German Military High Command administered Judenzählung (German for "Jewish Census"). It was designed to confirm allegations of the lack of patriotism among German Jews, but the results of the census disproved the accusations and were not made public.
Another variation of this notion is an accusation that Jews are cowards who evade military service. With the rise of racist theories in the 19th century, "[a]nother old anti-Semitic canard served to underline the putative 'femininity' of the Jewish race. Like women, Jews lacked an 'essence'". In Genocide and Gross Human Rights Violations, Kurt Jonassohn and Karin S. Björnson wrote:
"Historically, Jews were not allowed to bear arms in the most of the countries of the diaspora. Therefore, when they were attacked, they were not able to defend themselves. In some situations, their protector would defend them. If not, they only had a choice between hiding and fleeing. This is the origin of the anti-Semitic canard that Jews are cowards."
In Stalin's Soviet Union, the state-wide campaign against "rootless cosmopolitans" – a euphemism for Jews – was set out on 28 January 1949 with an article in the newspaper Pravda:
"unbridled, evil-minded cosmopolitans, profiteers with no roots and no conscience...Grown on rotten yeast of bourgeois cosmopolitanism, decadence and formalism...non-indigenous nationals without a motherland, who poison with stench...our proletarian culture."
