I am Jewish. Every member of my family is Jewish and a decent human being in
his own right. Neither I nor any member of my family has any categorical dislike
of Irish people 'a priori'. Thus, by counterexample, the thesis of the question is
proven false.
The logical structure of the question is a lot like: "Why do you beat your wife ?"
Absolutely. There are individuals of all races who dislike Jewish people. That's not saying all black people dislike Jews.
Dislike of semites. (Jewish and Arabic people)
Anti-Semitism
Too many rules and restrictions
No they don't.
YES. However, very few people would qualify as having "Irish Jewish ancestry" in that their ancestors were Jews from Ireland since the Irish Jewish community was never terribly large. (Currently, it boasts 400 members.) More likely, if you find a person who claims "Irish and Jewish ancestry" this is a person who has Jewish ancestry on one side of the family (let's say Polish Jewish ancestry on the mother's side) and Irish ancestry on a different side of the family (let's say Irish Catholic ancestry on the father's side).
America
It's not true. Jewish people are respected in many countries in the world.
Irish Jewish Museum was created in 1985.
I Know That She's Jewish But I Don't Know If She's Irish. She Probably Isn't.
Cavanaugh is an Irish surname. Not to say there aren't any Jewish people named Cavanaugh, but traditionally it isn't Jewish.
personally, i think the potato famine was absolutely worse than the Jewish holocaust.... the potato famine killed a million irish people.