You need to seriously address this inquiry of yours about the NT canon to eminent Lutheran and Protestant theologians who converted to Catholicism. Here are a few.
1. Ulf Ekman, the founder of Scandinavia’s biggest Bible school, with a congregation of some 4000 individuals, converted to Catholicism because his theological inquiry confirmed for him the indispensability of the Catholic sacraments.
2. Francis J. Beckwith, a “born-again” evangelical, a tenured professor at Baptist-affiliated Baylor University in Waco, Tex, was the president of the Evangelical Theological Society, an association of 4,300 Protestant theologians resigned and joined the Catholic Church. One blogger likened it to Hulk Hogan’s defection from the World Wrestling Federation to the rival World Championship Wrestling league.
3. Rev. Richard John Neuhaus, was a pre-eminent Lutheran theologian in America. He knew his Bible-text and history like no other Protestant. When he converted to Catholicism he said, “I have long believed that the Roman Catholic Church is the fullest expression of the church of Christ through time.”
Well I’ll go dig up some catholics who’ve convertedand raise you two.
Those are meaningless...Theology and Christianity are two totally different animals...