I think that sometimes people forget that when you're a stranger in a strange land, even if you're from a big country, you can feel very small and alone, and vulnerable. I think that when you're from a big, powerful, influential country that strongly impacts on their country, they can sometimes inappropriately state and overstate their negative perceptions and opinions of your country in a way that can feel very personal. And be very upsetting.
The United States of America is HUGE. Incredibly diverse population - Native American, Hispanic, African American, Chinese American, Japanese Americans, White American. . And so many cultures, religious persuasions, political viewpoints. . .
I've had limited time in the USA, only in LA and San Francisco. The people were lovely. Very kind, very friendly. We did have a couple of incidents in San Fran', with some homeless people who clearly had mental health issues, poor devil, and with picking up one poor lady after she was mugged, while other people just walked on by. But that's not representative of everything and everyone, just incidents.
We found food that we enjoyed - particularly the Steak Houses, and the Cheesecake Factory (which as far as my girls are concerned is the alpha and the omega!) We found good supermarkets with excellent fresh produce.
As to chocolate. Well, I'm biassed. Whittakers chocolate from New Zealand, all the way, lol.