Let's ask the world's leading expert in urban warfare, then:

https://www.newsweek.com/israel-has-created-new-standard-urb...

https://www.linkedin.com/posts/johnwspencer2018_israel-has-d...

Note the falsification of Hamas casualty figures:

https://www.yahoo.com/news/hamas-quietly-drops-thousands-dea...

https://www.washingtoninstitute.org/policy-analysis/how-hama...

It's actually quite believable when you define a combatant as males aged 13+