Yeah idk. Every country I've been to, customs has not been great. I'm. not saying the US immigration isn't bad, but people actively avoiding the entire country for anything bad? Not hardly.
So you keep believing everything is ok, I'm sure it makes you feel better, rather than actually listening to other people's stories.
So.... I'm not sure what to tell you. What exact treatment happened? Somebody being rude to you at the border doesn't count, who cares about that? If you were detained, or interrogated, or something along those lines, then yeah you have a legitimate gripe. But I don't want to hear anything about "the security officer was rude".
Don't tell me what I am and am not allowed to feel based on my experience.
What was your poor experience?
I've been to over thirty countries, including Russia.
The US was the worst and UK was the second worst out of all of them. Immigration always sucks just due to the nature of it, but there's a difference between the process sucking and the employees/policy going out of its way to make a bad situation much worse.