Antisemitism.
Holocaust itself means 'death by fire'. The Holocaust, however, is term to mean the mass murder of millions of the world's Jewish people. It happened because of ethnicism. A form of discrimination by beliefs. However, it was also in part because of racism, but not primarily racism.
The term for people who dislike Jewish people is "anti-Semitic." This refers to prejudice, discrimination, or hostility towards Jewish individuals.
Anti-Semitism
Antisemitism is racism, but specifically against anyone who is either a practising Jew or of the Jewish race. Although Arabs are semitic, the term antisemitism is used to refer specifically to Jews. This racism takes many forms including conspiracy theories of Jews controlling banks and governments, or a more modern form is to make false or exaggerated stories and claims about the Israel/Palestine conflict, in order to use as a weapon of de-legitimisation against the Jewish state. Or others include simply denying the Holocaust or the Jewish connection to Israel; which is a bit like denying that slavery ever happened or black Americans and Afro-Caribbean people's connection to Africa.
The term for extreme nationalism is nativism, which can lead to racism.
Antisemites.
Difficult to ascertain; as it is dependent on a person being truly honest with themselves, and also how the term racism is defined.Some people consider racism as the oppression of dark-skinned people as perpetrated by whites. Some consider racism as any sort of favoritism, or disfavor, shown toward a person based on their skin color. Others may consider that racism is a prejudice against a person of a particular ethnicity.If you consider that perhaps all people have some degree of racist tendency at some stage during their life, the figure can probably be placed at close to 100%.
Judasim is a religion, not a people. The term is Jewish people.
Antisemitism.
Anti-Semitism.
that is the etymology of the word.