Just like when the Israelis turned over the West Bank. They left them with fully-equipped and functional agricultural facilities, that the sand rats immediately trashed because the Jews built them.
There is a reason why the Palistinians are hated by the rest of the Arab world. The only reason they are tollerated is that they are an excuse to attack the Jews. If the Jews were exterminated, the Palistanians would be next.
That was Gaza, but the idea is the same.