What a mendacious nation the USA is...
WTF? What nation has to do with it? Are you saying that federal government is plotting, lying and conspiring to blacken the name of the Poles? What kind of nonsense is that?
The thing is that pop culture is easily influenced by stereotypies and those are being created by narratives in the mass media and by the political influence of ethnical groups in America.
The thing is that Hollywood enjoyed very few or hardly any Polish influences. Successful Pol-Am more oft than not prefer to buy his wife an luxury items than spend some of his money to buy a place at the dinner table with a POTUS.
Generally speaking those who are concerned about image of Poles in the USA are either a first generation of Americans, few individuals or people without much influence anyway.
Plus there is a general trend that Poles born in the USA see themselves as Americans more oft than not with a notable exception of Polonius.
So if they willing to go out of they way to do something Poland or Poles related it entirely depends whereas their semimetal attachment to the notion of their connection to their ancestry is strong enough. They do see it as a expertise of pragmatism or something that would benefits them in anyway.
They have their life and in 99,99% of their daily life Polish issues don't concern them at all.
Whereas governments of Poland don't understand what needs to be done and they either do nothing or act like dumb bureaucrats who understand nothing.
'the thing about Americans is that they dislike complexity'
Like any society at large. I can see why a lecturer holds that notion but it is a delicious irony in the fact that in his generalisation he displays the same trait he denounces in his countrymen. lol!
The first officially acknowledged
Due to the fact that Allies didn't believe into info passed to them by the Polish Government in Exile. They justified that obstinacy talking about alleged bias of Poles towards Germany. The truth is more mundane methinks.
First of all Allies were riddled with Soviet stooges, agents and soviet lovers.
Second of all no one had given two hoots about the Jews, not Britain not USA. Mr Hitler was doing something with Jews - good riddance. Wow he was actually exterminating them, really? that ridiculous such a gentlemanly, civilized nation as Germany (if that were Poles that would be believable but Germany you surly jest or at least exaggerate) not good but we're not going out of our way to stop him.
We have a war to win and one we do that will put a stop to all the atrocities.
Also Germans hadn't started with their final solution before 1941 or 42, not sure, I think it must have been 41.