From my research, it appears that some Irish locals are expressing fatigue over the influx of American tourists. While Americans are generally well-received, there are concerns about overcrowding, especially in popular destinations. There are also cultural differences which can sometimes cause friction. But it's important to remember, this isn't indicative of all Irish citizens' sentiments - many appreciate the economic boost that tourism brings. It's about finding a balance between preserving local culture and welcoming visitors.