Why does it take the killing of non-Gazans for the West to see war crimes?

Politico reported that the US and other Western governments were “outraged” by the “devastating” attack that killed 7 workers from the World Central Kitchen, just another a war crime. Ironically, these governments do not seem to be outraged by the fact that these seven aid workers were killed because they were in Gaza feeding 2 million people starved by a war that is enabled by them. 33,000 civilians killed in Gaza, 70% of whom are children and women, did not cause outrage to summoned Israel diplomats. But this incident does.

The news outlet reported that

 "Israel’s strike against aid workers trying to get food to residents in Gaza reverberated across Washington on Tuesday, particularly resonating because of the American death and the connections the group’s founder — José Andrés — has to the capital. Administration officials lashed out at new levels, and Israel was left struggling for damage control."

Western media provided extensive coverage as if these are the only seven uninvolved civilians killed by Israelis strikes in the past 6 months.