Why 'claim'? For me, delph describes realities better than many Poles who shroud themselves in a curious mystique without seeking to explain anything. Delph takes the bull by the horns and gets into the nitty gritty of things.
Well, exactly and he expect to be treated as an expert or at least an authority on the subject. Sometimes he overstep himself, for example politics are not his forte, and he is often flogging a death horse with his political preachings
Personally I find some Pol-Ams and their sentiment to Poland or her culture charming. Most of them from those interested in Poland (not first generation in my experience though)are trying to share what they think could be good for Poland. They maybe wrong or right but they hold that sentiment probably out of respect for their ancestors and because history of Poland is history of strive for freedom,Polish cause ( pardon my French) is a noble cause.
No matter that nitty-gritty of everyday life in Poland nowadays are nothing to be cherished.
Certain Brits however take Poland as they come and they sentiment if any is connected with their every-day liefs which can be both rewording and frustrating.
Some clashes and misunderstanding between those groups are not a bad thing but some members are taking that to the extreme.
In my opinion it all come down to the characters of individuals in question.