If you ignore all history your moral lines will shift markedly. Capital punishment appears as murder. A retaliation becomes an attack. In fact it is possible to view Hamas's attacks as slow motion retaliations that happened much later because it takes a very long time to prepare in their condition.

Some people have different moral rules. An eye for an eye combined with collective guilt (or just the belief that all adult Israelis serve in the IDF thus they are all guilty and legit targets) would insist that Palestine is owed tens of thousands of eyes from any Israeli they can get them from. This is NOT my view. I am highlighting a deep flaw in the very idea of being guided by morals outside of a population that shares the same morals.

Having said that, should I abandon sympathy for Palestinian children because their society runs on different moral codes,? Is it okay to treat them as animals and exterminate them because by following their moral guidelines they threaten my society?

I think not but I don't have the answers.