I had once been accused of being an anti-patriotic person in a comment on my Sabah post. Some may say that nationalism means that you should support a fellow countryman, no matter what he is doing. Support your country, even if it is corrupt and doing wrong. I disagree with all this.
Just think of it from the point of view of Germans in World War II. We all know today about the Holocaust against the Jews. It was an evil and condemnable thing. But the German civilians mostly did not know about it. So what if the German civilians who have a sense of decency learned about what their Nazi leaders were doing? What if they realized that Hitler ordered a genocide and said that this was a national imperative?