I can't speak for everyone, but I've pretty much never met anyone in Ireland who has any genuine particular animosity for the English other than rooting against their national football team. If anything we have a reluctant sibling kind of fondness for them as we recognise that, while there are differences, we're culturally extremely similar. We've also, up until very recently, been very fond of Americans, though the EU has been changing that, as tbh, have been the majority of Americans who come live here. I work with quite a lot of Americans and all they ever do is talk about how awful America is.
And I thought that the ex-pat Americans were bad, but last month I had to work with a number of visiting Americans and OMFG, the TDS on display was actually kind of worrying. I felt like I was doing the Homer backing into a bush meme every time the discussion turned to how horrific it all is in the US right. And it was making me feel like a massive hypocrite, as when I talk to Irish/other Euro people about the US, I always point out that we're not American and aren't in a position to understand what's going on in their country and how people feel. And then I'm standing with a bunch of Americans talking about what's going on in their country, and I'm silently judging them for being wrong. Though, part of what they are telling me is how wonderful everything is here compared to the US, and I know that's bullshit. Our civilisation is being fucked over from every direction and I'm really worried about what's going to happen in the next 5-10 years.