So it should have not given a safe route?

and then bombing them as they followed it

Hamas lies, in fact they actually shot at their fleeing people to deter them from leaving so they’ll remain human shields, obviously blaming Israel.

Or bombing refugee camps

The refugee camps are being used by terrorists, ate you telling Israel how to achieve its goals? In fact, even after Israel designated humanitarian zones, Hamas started shooting from there.

Cutting off the fuel supply

Humanitarian needs are being taken care of, although I don’t think any country would do the same in the same situation where the electricity and fuel are constantly being used against you. Can you imagine supplying fuel to a country that keeps throwing rockets on you for years? This situation is absurd.

bombing hospitals

Hamas lies which have already been proven so. The single time a hospital was hit was due to an Islamic Jihad rocket misfiring and landing in a hospital parking lot (supposedly killing 500 people according to the fastest body conters in the world, which were able to supply that body count around 5 minutes after that missile exploded).