You are correct that every society seems to have its own racism and you are absolutely right to state that we must show zero tolerance to the perpetratrors. Where we differ is in the recognition of the degrees in each society. There is much more anti-Semitism in Europe than in the USA, for instance, and there is more anti-black racism in Saudi Arabia than there is in Egypt and more anti-Arab racism in France than there is in England. In Gaza, there happens to be more anti-Christian racism. That is not to say it is all pervasive or it is unique, but the Christian Gazans have suffered more than Christians elsewhere, including in the West Bank.
U.S. says working on initiative to de-escalate Syria fighting, with focus on Aleppo (Reuters)
from the article: Palestinian Christian activist stabbed to death in Gaza