I’d bet you 3/4 of those women aren’t Irish. Dublin is a very popular destination for eastern europeans since it’s part of the EU. The last time I was there I think most of the servers & hotel staff we had were from Poland, they take advantage of the EU work rules to get employment in a better paying country. I hate to say it being of partial Irish ancestry, but Ireland doesn’t have the prettiest women. Most of those girls look better than the average Irish.
The best looking women I saw in US were in Dallas. That was in 1980’s.