Nice attempt to poison the well.
The fact is, you can torture any religion for similarities to Christianity. It doesn't prove anything.
The resurrection myth goes back to the Sumerian creation epic, Enuma Elish.
What "resurrection myth"? Someone rose from the dead? People rose from the dead in the Old Testament too. Oh, and please provide a source.
Osiris followers found salvation in death and his rebirth. 1,400 years earlier.
They lived on in the spirit world by funerary rites as Osiris had after being murdered by Set. Other than dealing with vaguely similar subjects, what does this have to do with Christianity?
Krishna was born from a Virgin.
Source, please.
Frigga was impregnated by Odin and bore Balder, a healer who was to save mankind.
And who was Frigga? A goddess, not a human virgin. And Balder was to heal mankind until what? Until he got killed with a mistletoe dart. "Well... uh... there's wood involved! Just like the Crucifixion!"
Baptism in water was already a common pagan ritual.
1) Source please.
2) Explain why this "common pagan ritual" had more to do with Christian baptism than the baptism practiced by the Jews (the mikva).
Mithras followers found salvation in the blood of a Bull.
And what does this have to do with Christianity?
BTW, the Tauroctony probably has more to do with constellations than salvation.