What you are saying is, that colonization, by nature, is fought with fevour, by the indigenous population. Yet, it is not immoral, because this is the nature of colonialism. Or more specifically Zionism in general.
That is perhaps, the most realist, yet sickening thing I have ever heard. But Zionist have a habit of being realists, in this case perhaps the most important Zionist, David Ben Gurion:
"In 1936-9, the Palestinian Arabs attempted a Nationalist revolt …David Ben-Gurion, eminently a realist, recognized its nature. In internal discussion, he noted that ‘in our political argument abroad, we minimize Arab opposition to us,’ but he urged, ‘let us not ignore the truth among ourselves.’ The truth was that ‘politically we are the aggressors and they defend themselves… The country is theirs, because they inhabit it, whereas we want to come here and settle down, and in their view we want to take away from them their country, while we are still outside’… The revolt was crushed by the British, with considerable brutality."
Noam Chomsky, "The Fateful Triangle."
‘In internal discussion in 1938,[David Ben-Gurion] stated that’ after we become a strong force, as a result of the creation of a state, we shall abolish partition and expand to the whole of Palestine… The state will only be a stage in the realization of Zionism and its task is to prepare the ground for our expansion into the whole of Palestine'
What I do not understand, is weather you see this as some sort of justification. You described it as "wise words". These same words could easily be used by Hitler;
Genocide, by nature, is fought with fevour, by the persecuted population. Yet, it is not immoral, because this is the nature of genocide. Or more specifically the holocaust in general. Becuase "This is our ethic. There is no other ethic."
Clarify your statements, because the way it sounds right now, you simply think that war crimes, genocide, and any other number of crimes, are justifiable through the rationale that "This is our ethic. There is no other ethic."
Personally, my thoughts fall in line with those of Gandhi;
"Palestine belongs to the Arabs in the same sense that England belongs to the English or France to the French…What is going on in Palestine today cannot be justified by any moral code of conduct…If they [the Jews] must look to the Palestine of geography as their national home, it is wrong to enter it under the shadow of the British gun. A religious act cannot be performed with the aid of the bayonet or the bomb. They can settle in Palestine only by the goodwill of the Arabs…As it is, they are co-sharers with the British in despoiling a people who have done no wrong to them. I am not defending the Arab excesses. I wish they had chosen the way of non-violence in resisting what they rightly regard as an unacceptable encroachment upon their country. But according to the accepted canons of right and wrong, nothing can be said against the Arab resistance in the face of overwhelming odds."