"Rafi, an Israeli living in London for 20 years, told Ynet how impressed he was at the civilized nature of the demonstration, as opposed to the violent protests held by pro-Palestinians in recent days in the British capital and other cities in Europe."
I can't speak for other cities, but I was at the London protest. I saw no violence and no anti-semitism. Instead, I saw 15,000+ Londoners, many of whom were in the middle of a long fast, marching to express their disgust at what Israel was doing to so many women and children in their own land.
Anti-Zionism is NOT anti-semitism, any more than anti-BNP is anti-British. .