According to Israel itself 38 children died in Oct 7th:

https://www.timesofisrael.com/liveblog_entry/38-children-wer...

That's the same number killed by Israel in the West Bank alone in 2023 before October 7th:

https://www.savethechildren.net/news/2023-marks-deadliest-ye...

Israel has since killed tens of thousands of children. It's very clear (especially if you know the history of Nakba) who is at fault here.