Actually, I'm an Anglican. I have several OCA friends and am fairly familiar with their problems. True, Orthodox didn't face the same type of unifying persecution in this country that Catholics faced. The large influx of Orthodox came after the heydey of the kkk types; and then they tended to be welcomed as political refugees from communism. Besides, the drooling specimen of white trash wrapped in a bedsheet wouldn't be intelligent enough to distinguish between Roman Catholics and Eastern Orthodox anyway.
Orthodox are still seen as "under the radar" by many because of their lack of organizational unity. Most of them are in full Communion with each other, recognize each other's clergy, and particiapte in joint mission projects (such as the Orthodox Christian Mission Center in St Augustine.) Taken as a whole, there are more Orthodox Christians in this country than Anglican/Episcopalians or Presbyterians.
The only persecution that Orthodx will likely face will be the same persecution that traditional Catholics and Evangelical Protestants will face. That will come from those three groups' opposition to abortion, euthanasia, gay marriage, the "MTV" culture, etc.
What you say is true about the persecution not being unifying. However, except for the Mormons, the Orthodox are the only sizable religious body to be actively persecuted by the United States government. In Alaska where many of the native peoples (the Tlingits, Aleutics, Athabaskans, among others) had been Orthodox for generations at the time of the Seward Purchase, up until the 1960's the Federal government was still trying to stamp out Orthodoxy by forcing native children to attend protestant schools and actively supporting protestant missionaries.