I have a different take than everyone else on this.
We are really on a much higher level than the nations in regard to middos, etc. Look at the divorce rate of the world and compare that with ours. The Germans were also very proper and mannerly. The difference here is that the goyim are more in tune with social graces and mannerisms than we are. But if you compre them with us in circumstances that really show the person, eg: someone in your family or office gets on your nerves or provokes your anger, they do not compare with us at all. (not to say we are perfect – we always have what to work on..) In todays society it is rare to find a goy who has real values and morals.
This is not to say that we should not be aware of this issue and be carefull how we act in public, but the way it is being portrayed here is wrong.