> Israel has a much worse ratio of civilians to valid military targets (possibly between 5/1 and 8/1 ratio, while Hamas has 2/1 ratio during Hamas' attack, and it is believed many of those were killed by the IDF)

The IDF ratios are indeed atrocious. For journalists, for example, in another thread I tried to calculate some detailed estimates, and concluded that given the casualties up to 01/03, if one journalist and one Hamas militant were statistically put side by side, IDF is ~3x more likely to shoot the journalist. See:

Part I: https://news.ycombinator.com/item?id=39603300

Part II: https://news.ycombinator.com/item?id=39603311

Part III (Python source code): https://news.ycombinator.com/item?id=39603322