A couple of my kids got the Irish citizenship that way.
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A good move. In the late 90s, I mentioned the Irish citizenship and passport quirk to a good friend of mine who happened to be a retired spy with deep cover operational experience abroad. My friend immediately urged me to do it if I planned on any foreign travel because he was convinced that Bill Clinton’s derelictions would lead to a long era of Islamic terrorism. As my friend explained it, using an American passport might me one killed, but “although the Irish often hate each other, no one particularly hates them.” When I told the story to some visiting Irish relatives, they took that assessment as a compliment.