And yet, from the 1st Century the most respected teachers, preachers and successors of the Apostles disagree with that tiny, fringe teaching.
And, no, I have to respectfully disagree with your information. Facts don't back up your historical assertions. There is nothing in 1st century writing that elevates Mary to Co-Redeptix or even sinlessness. Most of this started much later and is counter to scriptural teaching. The Apostles did NOT agree that Mary was sinless. As pointed out in John's letters, he himself makes no exclusions for Mary being sinless.
Your lack of historical knowledge is not conducive to debate. Start with the Didache. Read St. Irenaeus. Then get back to me.