I would not worry much about such comments.
You can find this (and worse) in any country...people avoided to go to Germany .. they have heard that foreigners are again attacked in the Metro (U-Bahn) by Punks. Got the message?
Just come and see for yourself.
Are you interested in horror-stories? I can give you some examples what (United States) INS, border control, security ... did to my friends, customers. You have a lot of "rules and regulations/red tape" in the US. More than in Europe. And some Europeans have trouble with this ...
As said before, come to Florida, it's nice, the people are friendly, it's (almost) a paradise.