Couldn't have been because Croats committed the first airline hijacking in US history back in 1976 and killed a New York City Policeman in the process?
Couldn't have been because Croat separatists took hostages at the UN Building in NYC in 1977 and held them for hours?
Couldn't have been because Croat separatists took 8 hostages at the the West German Embassy in Chicago in 1978 and held them for hours?
Couldn't have been because Croat separatists bombed the Statue of Liberty in 1980,and blew up the New York Supreme Court Building in 1981?
And those were just of a few of the "highlights" of what happened here in the US at hands of Croat separatists. Am I surprised that they got "bad press" for it? No, they committed criminal acts. Serbs never did any of that to America or Americans and got "demonized" anyway -- there's a big difference.
What the Serbs did in the 1990s grossly outweighs those few actions of a few extremists in the 1970s. I guess you’re missing the point.