I don't get it

I was reading a traditionalist minded blog today and was perplexed at the amount of Jew hatred the blogger seemed to express. This particular blogger is a young man with a family and boy do I feel sorry for his wife. His attitude was not unique. I've been to two Catholic forums and both had ugly things to say about Jews in America and Israelis. What's up with this? How do these Catholics go to Mass and face Jesus, who chose to be a Jewish man and pray to his dear mother, a Jewish woman and live with themselves?