You're excusing the war crimes of Israel starving the people of Gaza of food, water, electricity, and basic medical care while they bomb residential homes, critical public infrastructure, safe zones, and refugee camps. The decades of brutal occupation, the deprivation of basic human rights of Palestinians.
You're failing to recognize how groups like Hamas exist in the first place and you're failing to recognize how this repeated forced displacement, unending bombing, and deprivation of fundamental needs is not how those groups go away.
The tunnels are a result of the blockade blocking necessities along with Israel controlling water, electricity, sea, air, movement, etc.