Theres nothing in the article that proves that the early church fathers were "anti-semitic". Just hyper-sensitive, PC overeaction by the author.
Your statement is the overreaction. Did he say that all of the early church fathers were anti-semitic? No. He named some antisemitic statements. Heck most of the world has been anti-semitic since Israel first became a nation. The author's article is NOT to castigate the world for being antisemitic. He documents antisemitism that has existed. His point is as Christians we should not allow such thinking to exist in our own lives. The hypersensitivity not with the Jewish believer. But even if it was, I think having been kicked out of several countries and having had millions of your own murdered might tend to make you a bit hypersensitive.
Don't ignore reality in order to excuse the church from some real wrongs it did. Rather, learn from history and treat everyone with respect today. That is the point.
Of course they were.