Countries do care, the only reason we ve a ceasefire in Gaza is because of the Americans.
But any criticism of Israel very quickly will get you called an Anti-Semite (as i found out when i argued for a ceasefire (on here) in Gaza 2 weeks ago)
This is why countries/politicians stay relatively quiet, as far as i can see, in terms of outcome, there is little difference between what Russia is doing in Ukraine and IDF is doing in the WB or Gaza.
Media is full of the tragedy of the death of a Israeli kidnap family, apparently killed in IDF bombing but little about the death of a Palestinian woman (who used to work in the Scottish NHS) and her family bombed in Southern Gaza in the so called safe zone, 42 members of her extended and immediate family all killed.