The matching of the Irish quest for nationhood with that of the Palestinians is, as you say, simplistic. that's probably why it has been so successful - no thinking required😠
Unfortunately it took hold spectacularly - in a way that kind of reminds me of how trans ideology was so successful in Ireland. A great, and admirable, national sympathy for the underdog, but accompanied by an inability to identify who the underdog actually is.
And just as trans rights activists seem to delight in the chance to be sexist and misogynistic, even to the point of being violent to women, because 'hey, we're on the right side of history', the Gaza conflict has been a lens for all the latent antisemitism, because 'hey, we didn't say Jews, we said Israelis, so how dare you call us antisemitic...'
I'd like to think that the flag-wavers [who haven't been out marching for quite a while now.. moved on to some other fashionable cause?] are the noisy ones who get all the attention, and that there's a silent majority here who have a more informed and nuanced view of Israel/Palestine.
Well, there's me, for one...😶