While there are some reasonable parallels to the analogy; Jesus was not really a scapegoat for Man.
Not, that is, one who was punished for the sins of others; not even one who was willingly punished for the sins of others (which a scape goat never really can be - at most the goat might placidly accept the unjust punishment).
Indeed it is dangerous to regard scapegoat as the master metaphor of what Christ did; because, surely, no matter how we try to spin it, we could never wholly accept the principle that it was right to punish the innocent for the sins of the guilty?
No - Christ was essentially the giver of great gifts, the bringer of great Goods; bringer of the good news.
He was one who added; not one who took-away.