The painful part of the whole entering the US thing is not the bureaucracy or the security theater. It's the people. The whole system seems to be filled with p

The painful part of the whole entering the US thing is not the bureaucracy or the security theater. It's the people. The whole system seems to be filled with people that are trained to make entering the US an unpleasant experience. Even when everything goes smoothly, rarely are people at the border being nice, polite and helpful as they are in most other countries. This is all the more remarkable since it is so distinctively un-American. Americans are probably the most friendly and open people in the Western world. Once you get past the border, it's a breath of fresh air compared to most European countries. So regardless whether or not the entire process is really justified, my main question is: what the fuck is wrong with these people?