'Polish' Poles don't like the American Poles and vice versa, that's a fact.
I have my doubts that their political views changed - given that many of the American Polacks are descended from poor Eastern peasants, it would seem unlikely that their political alliances have changed very much.
And yes, they don't like American Polacks. It's nothing to do with jealousy (after all, real Poles are able to work anywhere in the EU and earn just as much money, if not more) - but everything to do with the way that the Polacks are trying to ram what is "Polishness" down their throats. Can you blame them, when the Polonia media openly spreads nonsense about the Government, the President and so on?
I don't think it's even dislike, just mild irritation that they bang on about being Polish, yet can't speak Polish and don't do anything to help Poland.
when has Polonia EVER spoiled and election in PL?
Plenty of them certainly whined when Komorowski got elected. Keep the **** out of Polish elections unless you live here, is my motto. (and yes, I don't vote in UK elections).
Rather there's a great deal of distrust between the American Poles and the British Poles. The Rest-of-Europe Poles usually side with the Brittish Poles but not always.
British Poles don't care about the American Polacks - they integrated exceptionally well into society and really couldn't care less. The ones who are economic migrants - well, they're Polish, not British in any way.
For what it's worth, no-one here seems to consider the American Polacks as being Polish.