This is the first I’ve heard of it, but here’s one of his infamous quotes:
"There is a trait in the Jewish character that does provoke animosity, maybe it’s a kind of lack of generosity towards non-Jews.
I mean, there’s always a reason why anti-anything crops up anywhere; even a stinker like Hitler didn’t just pick on them for no reason.”
His other quotes tend to be condemnation about specifically Israeli zionism and barbaric murder, but i don’t have context as to whether he’s referring to palestine or not. Some people might have more sympathy for these statements these days, but a lot of his other quotes have to do with Jews controlling money and media, less defensible prejudice.
No, you take your country back with violent rebellion if needed, but ideally by peaceful means. However, given that Britain has not invaded any country in our lifetime, this doesn’t apply to us.
Yourbrussia example is relevant as that’s exactly what Ukraine is doing, with support from the UK, among others. Manynukrainian refugees are in Ireland. Mynparebts are hosting a family.
Hitting back is not the same as fostering deep seated prejudices against people who had nothing to do with past injustices your ancestors faced, even if they may have benefited from it, indirectly, through a more wealthy society.