Writing on X on Tuesday, Rose, the US ambassador to Poland, called Carlson "the most dangerous demagogue in America" and "an historical illiterate posing as a modern-day Herodotus."
The row follows a podcast interview in which Carlson spoke with Sir Jacob Rees-Mogg, a former British minister .
Carlson argued that Germany had been stripped of "German territory with Germans in it," and said Hitler's pre-war arguments had been "true."
He did not respond when Rees-Mogg pointed out that Prussia had earlier taken part in the partitions of Poland.
The British politician repeatedly challenged claims made by the American commentator, saying Carlson was "verging on defending Hitler."
The journalist replied that he was not "a secret Nazi."
In his post, Rose accused Carlson of using "so-called questions" about Hitler's "claims," and about whether defeating Nazi Germany was worthwhile, to invert history rather than illuminate it.
"Aggressors become victims. Victims become aggressors. Dictators are statesmen. Democracies defending themselves are warmongers," he wrote.
He added that portraying Nazi Germany as the victim and Poland as the criminal was "a grotesque insult to a nation that paid in blood unmatched in the annals of human crime."
Poland, he said, was the nation Hitler "invaded, occupied, terrorized and sought to destroy."
Polish reaction
Poland's Deputy Prime Minister and Foreign Minister Radosław Sikorski thanked Rose on X.
Government spokesman Adam Szłapka had earlier called Carlson's comments outrageous.
On Monday, Poland's embassy in Washington published a letter from its chargé d'affaires, Bogdan Klich, addressed to the US commentator.
Klich said he was "outraged" by what he called false and deeply disturbing statements, and demanded an immediate public retraction and apology.
He said the remarks were a "colossal insult" to millions of victims of Nazism, including hundreds of thousands of American soldiers killed or wounded in the liberation of Europe.
The speaker of the Sejm, lower house of Poland's parliament, Włodzimierz Czarzasty, said there could be no agreement to "any historical relativism."
He also pointed to the growing strength of Germany's AfD party, a right-wing nationalist and populist grouping, as a cause for concern.
Previous controversies
Carlson, a former Fox News host known for pro-Russian views, has previously questioned the Allies' role in the fight against Nazi Germany.
He has hosted the historian and podcaster Darryl Cooper, who is known for revisionism and for downplaying Hitler's crimes, and has repeatedly spoken favourably of Vladimir Putin's Russia, suggesting it is superior to the West.
In the same interview, Carlson claimed, contrary to the facts, that Russia's economy was "much larger" than Britain's, and that Russia jailed far fewer people than the UK for social media posts.
(ał)
Source: PAP, IAR