This is a very good piece from bbc [1]. It revise IDF claims and how things are not correct and that the death toll is probably much higher because israel destroyed partially or completely most of functional hospitals where death toll numbers are collected.

I am replying assuming a good faith and that your goal is not justifying killing innocent people because it is horrible.

[1] https://www.bbc.com/news/world-middle-east-68387864