The mass graves for starters that were discovered after the IDF left the area. The indiscriminate bombing of hospitals, UN assigned refugee camps don’t go amiss either. The forceful expulsion of millions of people from their homes to ever smaller and smaller parts of Gaza. Perhaps where the IDF told people to go to certain places for safety and then promptly bombed those places.This is supported by statements made my ministers or representatives in the Israeli legislature and government, including current and former ministers. The denial/restriction of aid and water.

This is completely aside from using trumped up evidence absent charges that members of the UN agency were supporting Hamas in order to disrupt funding to a UN refugee agency. They also used this as an excuse to raid hospitals providing necessary medical care, doctors and nurses have been killed. Oh and killing aid workers… repeatedly. I think the first excuse was “it wasn’t us” which turned into “it was us but it was an accident” to “it was us, we deemed them a thread”… another incident was… World Kitchen? That was just such a shitshow for the IDF that someone actually got the boot.

There’s plenty of evidence available, it’s literally everywhere and often published/reported on by international media.