This is just my personal opinion. Other Irish people are welcome to their opinions.
I live in Ireland. I do think that there is a huge amount of racism in Ireland.
I heard a man say to his daughter one day "look at the monkey", as a black woman walked past.
Ireland was a white majority for a longer time than other countries. I went to secondary school in Ireland in the 90s. In my school, there were 800 pupils. 799 were white. One was mixed race. We literally had one mixed race student.
In the last ten years there has been a huge amount of immigration to Ireland, and now you see every race. But literally in the 90s , I rarely ever saw a black person in Ireland. I remember a black actor said that he visisted ireland and he thought "there weren't many black people there"
This history of just having white people around up to pretty recently, has made Ireland have a lot of problems with racism in my opinion.