No, the left did not originate this cause; repeating the claim that they did will not make that come true.
Never mind returning to the same canard of (allegedly) “enforcing” unjust laws. Remember what Einstein is credited with saying about expecting different results from trying the same thing repeatedly?
Of course it came from the Left, all of it -- "Hitler's Pope", Churchill's alleged anti-Semitism, Roosevelt's supposed callous indifference to the fate of millions.
It's all about the Left's great cause -- to convince us that we are the real Holocaust perpetrators, and that's why they must be in charge and we must pay, and pay and pay...
So, I assume that your problem here is pure ignorance, you just don't "get" it.
Let me try helping out with some paragraphs from Gerhard Weinberg's 2006 forward to Rosen's book:
"It has always seemed both curious and, in a way, reprehensible to me that Franklin Roosevelt is blamed by many scholars for adhering to and continuing to enforce a law that had been placed on the books by the one person who had succeeded in defeating him in a campaign for public office.
In the context of a worldwide depression, Roosevelt knew, when he was president himself, that any congressional review of the immigration law during the 1930s was certain to lead to even further restrictions, if not a complete closure of the country.
When, during World War II, he tried to utilize his power as commander in chief of the armed forces, which allowed the temporary moving into the country of prisoners of war, for the temporary bringing into the country of refugees, as he did with the Oswego experiment, there were immediate calls for impeachment.
It is hardly coincidence that the White House announcement that there would be no further such experiments and the end of impeachment talk came within days of each other.
"If one asks how Roosevelt came to be blamed for the deed of the man he had unsuccessfully opposed, the answer is to be found in the unwillingness of many to look at the Holocaust in the context of the time.
Just as far too many scholars and other writers about World War II treat it as some sort of dangerous chess game with no aim or purpose, so others treat the Holocaust as an event removed from its contemporary setting.
As the Germans initiated World War II to carry out a demographic revolution open the globe -- with the Holocaust as a central element of that revolution -- so the Holocaust and the response to it by others has to be seen in the context of a world depression and a world war.
It is clear today in retrospect that German persecution of Jews after Adolf Hitler became chancellor of Germany in 1933 did not lead to the sort of restricted life for Jews of the sort with which they had coped for centuries.
These measures were instead a prelude to systematic mass murder.
However, neither most Jews themselves nor those observing the process anticipated anything of the sort during the 1930s or in the early years of World War II.
And many, both Jews and non-Jews alike, found it terribly difficult to grasp the reality when the killing was actually under way in areas under German control or influence...
"...Whether withdrawing the American ambassador from Berlin in protest against the German pogrom of November 1938 -- as the only head of state to do so -- or publicly denouncing the mass murder of Jews while it was occurring, Roosevelt never left anyone in doubt about his position on these issues.
It is only in retrospect that many have ignored this record...
"...There is a curious irony in the fact that the first American president who was comfortable with individuals who openly identified themselves as Jews and who was often vehemently attacked for this should be converted posthumously to the opposite position..."
So, we are talking about condemning Roosevelt for enforcing laws passed by Republican Congresses and signed by Republican Presidents at a time when those laws were supported by 82% of all Americans, both Democrats and Republicans.
I'm merely saying that FDR here deserves credit for what he did more than condemnation for what he didn't do.
Further, I think Weinberg here is being more generous and respectful of the Left's scholars & academics than they seriously deserve.
Those people come with a built-in agenda to mock & destroy everything good about America, to reduce us to slobbering fools, to be putty in their own ruling hands.
I say: resist! It's one reason why we post and support Free Republic.