Why did the christians copy the egyptian religious stories?

The egyptian God horus (written in 1280 BC) is the son of the God Osiris born to a virgin mother. He was baptized in a river by anup the baptizer who was later beheaded. Like Jesus, Horus was tempted while alone in the desert, healed the sick, the blind, casted out demons, walked on water, raised asar from the dead, had 12 disciples, was crucified. After 3 days, two angels appeared and said that he has been ressurected. This is the same story as Jesus. Why do many people believe in the false prophet Jesus instead of the real God Horus.