Difference is, Israel occupies the West Bank, not the Sinai, not Cairo not the Suez Canal! Israel Gave back all of the Egyptian territory in exchange for peace. Israel was attacked and threatened continually throughout the later 20th century, what are they supposed to do? If Egypt wants to renounce the treaty, then they should give back the land!
27 injured in fire, explosion at former air raid shelter in Hamburg, Germany (DPA)
from the article: Egyptians to hold ‘million-man protest’ against peace accord with Israel