Without going into the polemics, the details, the Talmudic scholarship necessary to comprehend, which would take understanding many many deep esoteric concepts, this is the bottom line

Moshiach was always seen as a man, ushering in basically as Mosses did, an era of redemption

However turns out Moshiach is God

So God was always here – what does it mean Moshiach was born? – and certainly, though Moshiach has come, he still hasn’t fully come!

But if God is here, can he be partially here?

And the answer is so obvious, which is why we don’t see it.

Wasn’t God always here?!

The issue of God being here is not God, it’s man.