No.
Gaza has still got a few hundred Palestinian Christians - The number of Christians in Gaza has dwindled in recent years. Today there are only approximately 1,000 left, a sharp drop from the 3,000 registered in 2007, when Hamas assumed complete control over the enclave.
Hamas rule brought an Israel-led land, air and sea blockade, accelerating the flight of Christians from the poverty-stricken enclave. “It’s become very difficult for people to live here,” says Ayyad. “Many of the Christians left for the West Bank, for America, Canada or the Arab world, seeking better education and health.”
While most of Gaza’s Christians belong to the Greek Orthodox faith, smaller numbers worship at the Catholic Holy Family Church and the Gaza Baptist Church.
Saint Porphyrius was a Catholic/Orthodox saint from Gaza from the 4th century
Israel will take over the north and push a frontier wall in the south.
They COULD nuke it, but that would be really bad both for PR and for the health of the Israelis (Jewish, Christian, Druze and Muslim) in the areas next to Gaza, so no, they won't do that