(I say “usually” because my wife was once told off quite rudely when she went through the visitors line as a permanent resident, because she wanted to help and translate for visiting family members she was with.)
The worst part of the experience is knowing they will not hesitate to fuck me over if they decide they want to, and I have little recourse. They can’t keep me out of the country, but they can screw me up for hours or days if they want. They can keep my wife out of the country arbitrarily, and the only fix there would be a lengthy and expensive legal process with no guarantee of success.
It’s minor compared to the hypothetical example of being imprisoned or executed on false drug charges, but my point isn’t that US immigration isn’t equivalently bad, but that I felt and experienced no menace whatsoever from Chinese law enforcement.
After walking around flustered, I decided to try another kiosk and that guy let me through. That's how stupid and arbitrary the process can be for an arriving citizen.
But the pressure is obviously there to answer anyway.
(This is in contrast to interacting with police within the country, where they can’t search your stuff against your will or hold you without probable cause, and not answering questions is a good default.)
They have so many people to process that unless you "piss them off" (as judged by them) and you are a US citizen with all docs in order they don't usually pick on people.
Chinese police...well, I mean, there is crap you have to put up with as a foreigner. Finding the right amount of paper work to register at the local PSB (and sometimes needing to drag your landlord along), and having to re-register after a foreign trip. Then the random checks when they come to your apartment to check your paper work... Chinese police aren’t bad by any means, but if you are a foreigner living in China, there will be some friction.
I'm saying this as someone who is married to a Mexican and crosses the US border by car. In general the experiences have been good by the way - just not all the time.
I'm just saying that it could be influenced by the way you look.
I think his point is that "looking like a US citizen" is basically either being European, native American or African American. Which I guess is kind of like everyone except for people who look like Asian, South American or from the Middle East.
My mother in law sneaked an orange in our suitcase, for the kids. I was charged $150 or $300(not sure anymore) for it and put on some list.
The best. experience is when you can pass without any interaction. Rarely I see it as welcome home, even though I am eager go and happy to be, home.
God help you if you are from Syria, Iran or any other country like that. Even Israelis because they 'look arab' often have issues.
I am curious of your bad experience, can you tell us more?
Edit: I do not look like a typical US Citizen.
Edit: Tangentially, I have also had great experience with American police. I’ve been pulled over a few times and the officers always have a calm demeanor with utmost level of professionalism. The narrative of US authorities mishaving happens in headline cases, not to vast number of people.