For Context: I’m Chinese American, and I do not feel “ashamed” for my heritage, neither do I feel “ashamed” for being a US Citizen.
The CCP is not my fault. I do not feel any shame of saying I’m from China.
Similarly, the trump admin is not my fault, I voted Harris. I do not feel any shame for being American.
So what is the thought process of people feeling shame/guilt?


Part of the social contract in America (at least… this is what I believed growing up here) is that we all kinda share in this thing we all have going. Like, let’s say we get into a war. The government can (and does) ask citizens to join the military and fight and the reason that works is because we all kinda implicitly signed off on it. Yeah, sure, you had nothing to do with the country getting into a war. But because you participated in government, in the system, because we run this thing (nominally) by the standard of democracy and consent of the governed, everyone owns at least a small part of the responsibility for the country’s actions. In the case of a war, that might look like joining the military and “doing your part”. More commonly it looks like paying your taxes and still “respecting” the government, even if it’s not the one you voted for.
Now, like I said, that’s more than anything what I felt when I was a kid. Speaking personally, I’m in a very different headspace now as it relates to governance. I also feel like generally speaking all that’s shifting, though I’ve very little to back that up save… gestures at the past couple of decades of American politics.
More to your question however, I think that the kind of social contract I laid out above kinda explains some of what you’ve asked. Even if you want to say it’s purely performative, that’s fine. But the fact that Americans are “asked” about how they should be governed implicitly puts the idea in our heads that we’re responsible for what our country is doing. It’s not just “some dottering old idiot at the top of the org chart decided this thing”, it’s we. America is doing this thing. Even if the truth really is that some dottering old fool made a decision out of personal ambition or greed. We get it drilled into our heads from a very young age that this is our government. And no matter how much you try to distance yourself from that… it still irks you, somewhere in the back of your head.
Maybe, at some point before I was born, that was expressed as a point of pride. I could see some folks being proud of what America was or what it stood for, once upon a time. Now though? I find it hard to believe that that mindset could find any other expression but shame. And weirdly, I believe that’s true regardless of what your politics are. Different reasons are at play there depending on what your politics are, of course. But lately it feels like everyone’s got some grievance against the government. Some reason to feel ashamed about what “our” government, what “we” are doing. Whatever that thing is for you, you don’t want it being done in your name. But the central trick of American “democracy” is that you don’t get to just walk away. Whatever is being done is being done “in your name” whether you want it or not. And it’s been that way since before you were born.
A tangentially related correlate here is that I feel like a lot of Americans don’t feel represented by their government anymore. I certainly don’t feel that way, and I haven’t since Obama was president. That was roughly back when I was young enough to uncritically believe some of the views I’ve expressed here. Things have changed a little bit. Anyways, the reason I bring this up is because part of what I think is going on is that the social contract is breaking down along the lines of nobody feeling like the government they have is actually representing their interests. Maybe, if this goes on for long enough, the social contract will change into something different entirely. Maybe this “shame” we all seem to feel will turn American society into something different than what it currently is, if it’s given the time to do so. But, I can’t really read the tea leaves on that one. All I know is things just can’t keep going the way their going. Something’s gonna break eventually.