Interesting...but, not from the perspective of truth. Interesting from the perspective of how quickly fake news is spread. Simple research reveals that Begin never said this. What he did say, which Kapeliouk took out of context, actually created from a context into which he read a ton of hatred, was a speech about defending the children in Israel from terror attacks: 

"The children of Israel will happily go to school and joyfully return home, just like the children in Washington, in Moscow, and in Peking, in Paris and in Rome, in Oslo, in Stockholm and in Copenhagen. The fate of Jewish children has been different from all the children. If the hand of any two-footed animal is raised against them, that hand will be cut off, and our children will grow up in joy in the homes of their parents."

The situations in the Middle East are very complex and difficult in the first place. Why add lies and hatred just to inflame those already filled with ignorance? This does not lead to peace.