I do agree that the comparison with south Africa is off. In South Africa, the westerners were simply controlling the Africans, intentionally keeping them down and oppressing them. They believed that they didn’t deserve access to education and resources.
Israel does have a security threat from the Arabs. They have had this since they began trying to make a state. That doesn’t justify everything they do, and i believe that part of the chilul Hashem the state makes (among literally thousands of violations of Torah) is its treatment of the non-naturalized Arabs. We don’t need to defend it even if we believe Israel is generally worth defending.
People are quicker to defend israel than they are gedolim who are accused of turning a blind eye to “you know who”, or the like.
Priorities, people.