You explained why Luther could doubt the inspired character of the Deuterocanon, but you do not explain why did he take the unprecedented step of declaring them uninspired, and why did his followers remove them completely.
It wasn't unprecedented at all. Jerome among others "declared" them uninspired. Luther included them in his version in a separate section and said in the preface:
"Apocrypha--that is, books which are not regarded as equal to the holy Scriptures, and yet are profitable and good to read."
That is kinder than I would have been. :) BD has posted several articles on this thread exposing the weaknesses of these books, including the issue with the Jewish canon, provable historical inaccuracies, and contradictions with established scripture.
But as I posted to Joe recently, I find it absolutely amazing that in the 10,000 posts here and the 12,000 on the L&E thread that I have seen Apostolics quote from the Dueterocanonicals MAYBE 3 times altogether. And you guys aren't shy about quoting, which is as it should be. I have seen the evidence myself as to how important and authoritative YOU all think the Dueterocanonicals are.