You do realize that PA controlled West Bank has a stable economy right? It is only Hamas controlled Gaza that has limits. Also worth mentioning is the way Hamas used over $1B US of construction materials on their underground network instead of trying to help their people.How is it doable? How is Phillipines and Palestine the same? Israel controls, land, air and sea. Nothing can go in. Israel does not allow building materials like cement to go in. So how will they build anything? Not possible. Israel's goal is to ultimately pressure those people so much that they leave and Israel gets to take over the land. That is their end goal. But the Palestinians won't leave. Which is why this conflict is never ending.
And sorry but except for the extremists, Israelis don't want to control Palestinian people and polling says far more people oppose annexation of the West Bank than support it.