Sounds like Israel is using a great deal of restraint.
The fighting has been going on for around two weeks. Well over 1.5 million people are squeezed into the tiny area of Gaza, and only a thousand or so have been killed. If Israel was as 1/10 as brutal and indiscriminate and as you claim, the death total would be well into the tens of thousands by now. Probably even higher considering how crowded it is.