If Jesus was impaled, christians would not make cross signs, they would put their fingers up their asses.
Actually there are original language translations that claim the so called cross was a "torture stake." Many reject this cause they say it is a JW view, but former Pentecostal preacher Dan Barker says it is true. Now all we have to do is imagine how Catholics would make this sign, and ask would there ever have been a movie called "The Sign of the Torture Stake." This shows how important the cross was to Christianity.