You are aware that FDR was in office from 1933-1945 >.> the same duration as hitler's chancellorship.... Like I love ya bud but you probably shouldn't be arguing about what Germany did and did not expect from the United States without knowing the facts of the time >.>
I know FDR was in office since 1933 but that doesn't mean that Hitler had a good understanding of the man's abilities. This is the same individual who said "kick in the door and the whole rotten structure will come crashing down" in reference to how easy the USSR would be to defeat. So I think it's entirely reasonable to say that Hitler underestimated the ability of FDR to rally the country as effectively as he did.
FDR was quite adamant about the Europe first strategy. But even if the Japanese had not attacked events in 1942 would likely have shifted the public to support a declaration of war against Germany.
By all means MacArthur was acting on behalf of the US government but being in charge of the occupation force in Japan he had significant influence and a large degree of authority. He was adamant that Hirohito not be indicted for war crimes and that opinion had a lot of value in Washington. That protection extended to many others it shouldn't have. Of course there were multiple reasons for these decisions but naturally critics of the United States and/or Japan do use it against both countries.
One could argue that as the war was clearly lost for Germany by that point it was unnecessary but it was still considered a strategically viable target. It did have some industrial capacity that had shifted to building materials for the war effort as factories further to the west had been reduced to rubble. I don't know if the Allies were aware the majority of its air defenses had been repurposed in a desperate attempt to hold back the Soviet advance.
In retrospect it's very easy to say it shouldn't have been done but to the knowledge available to the Allied commanders at the time it wasn't such a clear decision. They wanted to bring the war to its end by any means and it was believed that was a viable strategy to do so. I'll grant you that it is was a tragedy but I don't think we'll see much agreement here beyond that.
Over on the other side of the world US casualty projections for the invasion of mainland Japan were enormous. Throughout the entire war in the Pacific the Japanese had fought with such ferocity and fanaticism that must have been a great doubt that diplomatic measures would succeed without that invasion of the Japanese mainland. It was President Truman's duty to serve the interests of the American people first and foremost so I can't fault him for using a new weapon that had the potential to bring the war to an earlier end. Were an invasion to occur Japanese casualties would have been catastrophic too, figures far greater than those caused by the atomic bombs. I've read the argument that the US should have given time to see what impact the USSR's offensive in the far east had but the Soviets but that would put Truman in the poor position of letting the Soviets acquire territory and consolidate power in the far east. There also wasn't the stigma associated with atomic weaponry that there is today. The decision to use those bombs on Hiroshima and Nagasaki is in my mind significantly far less objectionable than Dresden.
Modern era? Are you referring to the strategic bombing of Vietnam? The whole Vietnam war was a brutal dirty affair for everyone involved. Strategic bombing was in effect the only thing that brought the North Vietnamese to the negotiation table. Lyndon Johnson's earlier attempts were hamstrung by all sorts of restrictions that also got a lot of US airmen killed. Richard Nixon's far more unrestricted campaign was more successful and actually produced the (very flawed) Paris Peace Accords. Had it been attempted earlier and if the North Vietnamese swiftly and severely punished for violations of the accords it *may* have resulted in a better outcome to for South Vietnam. Yet their government was so flawed and corrupt it probably would have still been all for naught.
Drone strikes up to today? I believe they are entirely justified in ongoing anti-terrorism efforts. Even Barack Obama thought that and he definitely had a less optimistic view of past US history than presidents prior to him. The sort of racialism we've been fighting... well the world saw its character in its full splendor when ISIS was being successful.
I'll admit I don't know much about the views of those sort on what the ideal government is, minus what they think it should be doing about the "lesser races". Generally they seem more obsessed with that side of Hitler's regime than anything else a government does. I would have to guess that the disillusioned class who find that Nazi ideology gives them some meaning probably discovered it through other means than genuine Nazis who had fled from Germany who would be far more likely to keep a low profile.
One thing to consider is the respective population of both countries in 1945 and later. Apparently Canada's estimated population in 1945 was a bit over 12 million versus over 139 million for the USA.
I shouldn't have to tell you there is a *huge* difference in Nazi Germany's concentration camps and the "interment camps" for illegal immigrants which seems to be the result of a system that is quite simply overwhelmed by the vast number of asylum claims, unaccompanied children, and attempts at illegal entry into the United States. Even the genuine internment camps for Japanese-American citizens in WWII were nothing like the conditions in Nazi camps where you'd starve to death or die from disease if you weren't chosen to be worked to death or just be sent straight to a gas chamber. It's apples and oranges if apples were just apples and oranges were some sort of tentacled monster that goes around murdering neighborhoods.
A lot of it is going to dependent on the underclass of disillusioned, usually out-of-work, usually poorly-educated people that pretty must exist in all nations in one form or another. Yes there would have been more individuals in the United States more receptive to the ideas due to the racial animosity that came to exist due to this nation's history, I'll grant you that. But even so I don't think there was ever what one could consider a vast Nazi presence here. You can probably find a number that seems pretty big when you write it down on paper but you'll find a infinitely greater number of American citizens who contributed to the war effort in whatever way they could, including countless southerners and others from places where there was a huge degree of racial animosity
Eugenics is its own whole can of worms. I know those deemed mentally handicapped and others were commonly sterilized but I'm not familiar how much racial tension came into play here. It does go to show though that the sciences can be corrupted and abused just as easily as any other human institution. Then again there is some degree to which such measures area good thing. I'd have to search if you wanted any details but I recall being told years ago of a relatively recent case where a court determined a severely mentally disabled woman should have her tubes tied because she had already had four or five kid and was simply incapable of providing for them in any form. There was a large objection to this but it was truly the most ethical course of action.
No I do not, but the former is almost a certainly considering the vast resources of all types the USSR had. I know for a fact that there are a lot of well documented cases of the sort of measures the USSR took to promote communist ideology in foreign countries. The whole "Russian interference" hype really nothing new either, it was so serious that at one point Ted Kennedy made an outreach to the Soviets when he was thinking of running for President, promising to be more agreeable than that cowboy Ronald Reagan. Of course he never ran for president since he killed Mary Jo Kopechne and that tends to hurt one's political aspirations.
The later is merely speculation on my part, but going off Russian history it seems pretty likely.