This isn't a shock to us, or bother us at all.
In fact, quite to the contrary, we celebrate the fact that God chose to become human, for us it is the most wonderful and awesome mystery, the centre point of the Christian faith.
The very message of the Christian faith is that God looked and saw human pain and destruction, so came amongst us to show us how to live a good life, how to relate to each other, how to relate to God, how to live life in the most abundant way. Christians celebrate and worship a God who cares enough that He'd become like us in order that we might understand him better.