I agree, there was very little open anti-semitism in Ireland during the era of the Third Reich. But there was definitely sympathy for the Nazis among anti-Anglos. I have two Irish grandparents, my father’s mother and my mother’s father, both of whom died in the 1930’s, before my parents married. My father’s mother was basically uneducated shanty Irish, and I know next to nothing of her political beliefs. My mother’s father’s family was lace curtain Irish-Catholic and at least somewhat anglophilic. My grandfather lied about his age to join the Army in 1917. He traveled to Germany on a tramp steamer after failing German at MIT, and spent the summer of 1920 in Hamburg learning enough German to get through engineering school. He died in 1939, but left behind translations of some startlingly bad Nazi books. Not Nazi books in the sense that they had the imprint of the Third Reich, but Nazi in the sense that they were written by prominent Nazi “thinkers”.
Like a lot of engineers, and other educated people, he was susceptible to the half-baked gimcrack “intellectual” nonsense that was in the air in the 1930s.
Wow! Luckily, my family were all grateful to have escaped the Famine and other horrors so they were very pro-America. They did hate the English and it wasn’t until I took my mother to London that she changed her mind! I never heard a nice word about Hitler or a bad word about Jews. But, then, they all were drafted into WWII.