It's an incredibly dumb move. Oh let me attack my bigger, stronger neighbor who provides most of of my utilities. Let me use my aid money to prepare flail uselessly fighting them instead of building up my country so I can actually defeat them.
Of in 2004 Hamas launches zero rockets from Gaza, launches zero terrorist acts from Gaza and instead smuggles all that gear into the West Bank and launches the same attacks from there. The whole world would be calling for an end to Israeli settlements in the West Bank and the establishment of the '67 borders there just like was done I'm Gaza.