The unique thing about Freemason it seem to be offering its members christians or none christians alike some of the same things Jesus has already offered individuals who repent of their sins and accepts him as savior.
Repentance and baptism makes one a child of God. Jesus is seen as the light that takes one out of spiritual darkness. Man is offered life after death; salvation is received through Jesus, not by works.
Mason offers all these without the need of Jesus . To the mason Jesus is just a man.