Some parts of the church date to the Crusader Period, but most of the structure dates to the 19th century. Lot of places in Israel like that.
Cinder blocks are not very 19th century. I have pics of the neighborhood from when the French controlled it after WW II. It was a TENT CITY. While there was stuff built there centuries ago, that stuff is gone. Any permanent structures there now post date 1947. During the ‘67 war the Israelis made a road out of the Gaza strip. I have pics of that also. Bottom line is whatever it’s called now, it’s made out of cinder blocks and concrete——not 12th century stone work.