The letters written by Paul are from the mid first century... and he wrote them.
as far as everything else you said it was just a different way of saying the same thing essentially. There is no basis for asserting any of these things you're saying. I already cited a good reference as to why. The issue with Peter had nothing to do with teaching, it was just his actions. Its clearly explained as such. And peters reaction to Cornelius shows he realized God is not partial. Thus to make the assertion you are is a real stretch.
If you read it for what it says, you reach the conclusion that Peter wasnt sure about Gentiles at first. Later understood there was no issue, but had trouble ridding his cultural customs out of his behavior just like other Jewish Christians. To make further assertions and ascribe meaning and indication is to verge on Pesher, which I won't do. It speaks for itself, and it's not saying what your posts are saying.
So I think we'll have to agree to disagree :). But I hope I haven't said anything taken personally by you, I really enjoy your posts even if I don't agree with every detail.