Every objection here is answered by the doctrine of the Trinity.
Jesus is man, and God. He is the only begotten if the father, and we become adopted as sons and daughters. Jesus is equal with the father, but a different person and so he talks and prays to the father. The verses of the Bible where we derive these positions are conveniently omitted, while the Bible is used as a source as if authoritative to the Muslim.
If the Bible is to be trusted, Jesus is God. There's no way around it. The Quran is untrustworthy for a host of reasons, but one of the most compelling ones is it's disunity with the old testament which Islam claims to view as scripture. If Jesus isn't divine, but the OT is still true, what can they do about Isaiah 9?