Well, that's the thing, the tyranny has to be overt for most Americans to even believe in it, we've all been so thoroughly schooled on America The Beautiful, the freedom and justice for all party line. Until it's truly overt, most Americans think any talk of "tyranny" is originating from the tin-foil-hat brigade, and will go back to their highball and cheezpuffs and reality TV.
It's very hard to believe the absolute worst of an institution you've been raised to revere; I really, really, sincerely doubt that most Germans were behind the excesses of the 3rd Reich -- either they didn't know, didn't believe, or didn't WANT to believe and thus were insulated from ever believing. I'm sure it came as a rude and nasty shock to 99% of Germans that their leaders were such out-and-out villains. And even here in America, when it was still "the colonies," there were quite a few of those who wound up being signatories to the Declaration who, right up till the last possible moment before signing, thought that we might effect some conciliation with Britain -- and even those unfortunates known as "Tories" who were actually pro-British when the hostilities commenced; they just thought they were British subjects, because that's what they'd always been.
Change is always hard, and when it goes against everything you've always been indoctrinated to believe, unimaginably harder.
Andria
PS: historical tidbit: all this trouble with New York? New York was a virtual hotbed of Tory pro-Brit sentiment throughout the lead-up to the Revolution, and even during it. So they've pretty much always been "anti-American" in their politics. It's no wonder they seem so weird to the rest of us now.