Facts are not offensive in themselves. Efforts to minimise the killing of over 33,000 people, many of whom are women and children, and the traumatic injuring of tens of thousands more? That can come across as offensive.
The fact that a population has grown over a period of world history where a lot of populations have seen high growth does not take away that: tens of thousands have been killed and injured; almost the entire population of Gaza has been displaced; the infrastructure of Gaza has been destroyed; people are starving in Gaza; cultural and educational resources have been destroyed; and the Occupied Territories remain occupied. It does not make it ok to use snipers, drones and missiles to kill civilians and aid workers. It does not make it ok to torture and execute people.