Israel can completely blockade Gaza, stop sending them any electricity, tell Qatar to shove their money up their *** and let all 2 million people there starve to death. The only reason it doesn't do it is because it's "inhumane".
Qatar isn't smuggling anything into Gaza, the money they send goes in suit cases through our borders and we let it through, virtually nothing enter Gaza without our permission.
Hamas makes explosives out of fertilizers they make from Gaza's sewage and metal for the rockets from building materials we allow through to rebuild bombed neighberhoods. Their manufacturing capability is really insignificant. Russia fired in a day what they produced since their creation.
No country can smuggle anything into Gaza. And even if they could, Israel can end Gaza's existence in days since they are 100% dependent on Israel allowing supplies through.