Sometimes, the political system is better.
People? There is nothing new under the sun.
Maybe Im missing your point, but to take a hyperbolic example, surely you wouldn't live in north Korea and say "There is no place, and no time, where people are better than what you see before you right now."
(Agreeing with you btw)
People can become hardened, callous, mean, and damaged to a greater or lesser degree in durable ways that outlast political circumstance.
If you beat and abuse a child, and that child will be more likely to beat and abuse others. This is called the cycle of violence. You can absolutely have times and places where this is more or less prevalent.
"people are people" on a slave plantation as well, but their behavior is not the same as those living in Seattle. If you flipped a switch on the political system overnight, the people would not flip with it. You might expect to see trauma and damage to impact behavior for generations to come, even if you magically teleported them to Seattle.
I know families that fled the cultural revolution in China, and it still has behavioral impacts on people 60 years later, including children who have never even been to China. Many viewed their neighbors as threats, thieves, and informants and are less "nice" to strangers as a result. It changed who they are as people in durable ways that outlasted the causal circumstance, and informed how they teach their children to treat strangers living in Seattle 60 years later.
Surely you can imagine a place where conditions are not conducive to "being nice" and as a result, people are less nice overall. You might see the same absolute range, with examples of extreme kindness or terrible behavior, but the mean and typical behavior can be shifted.
Anyway, I think the original point is that you really live in the small group of friends and your interactions with strangers, while also part of life, it's less meaningful. So, you can find a culture that matches you more closely, but unless the culture you are in is completely disgusting to you, you're probably optimising the wrong thing.
I would push back a little bit on the idea that these differences are purely superficial. Humans can have real cultural differences regarding where they find meaning in life, how they relate to others in society, and if they ever find satisfaction, happiness, and fulfillment in their own lives.
Just because such differences can not be summed and weighed against each other to determine which culture is "better", does not mean they are the same.
This is the post-modern sentiment that I reject. E.G the differences can not be compared so therefore they are the same.
I grew up in the US but I've lived in South Africa for nearly 10 years. I've also lived in Switzerland and Mexico.
So I've seen enough of a range of how people live to know there are better and worse conditions. Maybe there is no true perfect country or culture, but there are definitely tradeoffs.
You might love the culture and hate the government, or love the government but hate the culture.
Like I love how friendly South Africans are, but my God the government is so corrupt. I love how the Swiss government works, but Swiss people aren't known for being easy to make friends with. God forbid you flush the toilet after 10pm.
So depending on what you are optimizing for, some places really are better than others.
Spain (the government and regulations around renting places) was unfriendly to newcomers as its a very socialist country and not very welcoming to digital nomads. Everything there is built in a way to expect a local bank account, local job, etc. From the moment of trying to get a local ID card it was clear that you were not really wanted there. Processes made purposely difficult and requirements differ from police station to police station. Beautiful country, but given that I do not intend to stop working remotely as a contractor it made basic things there very difficult. Spain is quite corrupt however so if you have money you _can_ get around these issues via some lawyer agencies who get you through the door in a matter of days of what otherwise can be a half-year wait in queue, but I just found the system fighting me too much.
Finland is great though, everything runs efficiently, most of everything can be done online, just like in Estonia, but much like Estonia, very difficult to make friends and the culture in general is quite closed and people keep to themselves a lot. Most people I know here have had the same friends since highschool. So when it came down to Finland or Estonia, I just chose the one I already had friends at.
In retrospect, were you searching or escaping?
Hope you find your happy place. Good luck :)