I'm sorry - I have tried reading that - I know what all the words mean but I can't make 'head nor tail' of what it means when they are put to together in that order. I speak as someone whose written English is bad myself so i'm not being critical - but I need help there!
Now to be clear I was not saying I disagreed with what you are trying to say - rather, the way your saying it is not good. You are quite correct to make the point that prior to the incarnation there was God the son, and that in the incarnation the God Man Jesus Christ was born and it is therefore not just anachronistic, but also theological error, to refer to the pre-incarnate person of the Son as Jesus - however to say Jesus was 'in deity' is to make God a pool that can be dipped into and pulled out of - the son was not 'in deity' he was fully God, equal with the father in every respect.
Yes, Jesus was and is fully God!