I object to the notion that history should be forgotten out of political "correctness".
Nobody denigrates the Irish here, but we all should remember their historic hardship as in https://en.m.wikipedia.org/wiki/Great_Famine_(Ireland)
(And yes, solidarity in Europe is a good thing, indeed !)
No, it's not. Ireland was, in fact, quite poor a country until just a few decades ago. It's like when people criticize Quentin Tarantino because he makes films in which his characters say "❤❤❤❤❤❤" a lot. That doesn't mean that the filmmaker is racist: he simply wants to recreate the historical ambience, language included, and in the XIX century's USA people referred to black people as "❤❤❤❤❤❤❤" normally. Ireland's not poor now, but it used to be. Stating historical facts is not politically incorrect. If anything, it would be negative to change how we recount history just because some people are bothered by past events.