I don’t think we disagree on our core principal beliefs. I would probably agree with you 95% on conservative ideals. But denying that the Bible is not true in all parts is opening up the entire Christian belief system to question. That’s a camels nose under the tent for non believers to ridicule and question Christianity and its entire moral foundation.
No its not. The Bible is not, in itself, our religion. St. Paul and co. were Christians, and so were their converts, even as they were writing the Epistles and even the Gospels. There were Christians before there was an assembled scripture. There was in fact a highly organized Church before there was an accepted scripture. The Bible is not the moral foundation of Christianity, that pre-existed it.
What conventional Christianity (such as the Catholic and Orthodox churches) has always said is that the Bible requires interpretation. That does not mean its not true.