Yeah... Except this is total bullshit. There was an airport built in Gaza. Israel bombed it the next month to prevent Palestinians from ever developing outside of Israels occupational pressure.
The amount of food and building materials amd other essentials being allowed into Gaza was deliberately limited to slowly degrade the living conditions in a way easily ignorable by the West.
The smuggling Tunnels into Egypt were a great source of income for Hamas, by allowing people to smuggle in basic commodities.
Meanwhile Israels "mowing the lawn" always revolved around slowly destroying Gaza and not allowing for rebuilding. The difference now is that they removed all restraint as the US and allies are allowing the total annihilation of all infrastructure, ethnic cleansing and genocide with impunity.
You conviently ignore that Gaza has been under Israeli occupation and siege since well before Hamas rose to power.