Are Catholics, Jews, Mormons considered Christians?

Not Jews, but Mormons and Catholics are a type of Christian. So the Jews have a thing in their religion about a prophecy involving a messiah coming along, but they tend to focus on Moses who is supposed to have led the Jews out of slavery. Christianity was started by a cult leader in the middle east who claimed to fulfill the prophecy of the Jews. Most Jews stayed in their own religion, but a few Jews and a few other folk decided this cult leader was the way to go. Within Christianity it states that this cult leader was crucified for making a ruckus by the Romans, and that he came back to life and then went off into heaven, promising to come back sometimes. So his followers have been hanging about in one form or another waiting for this cult leader to come back. His followers and many others added to the original cult that descended from Judaism through this cult leader.