we know that from the best primary source history books which have traced that rewriting in great detail.

Written and published by whom? :) Some biased writers whose books published only because what they wrote was suitable for publishers? What about books you never heard about because they was never published? They exists and a lot. Also with documents and other stuff. Try to find, say, "The assasination of Stalin and Beriya" by Y.Muhin. That is the view you definitely never heard about with perfect documentary proofs and solid logic. Does that mean that it is final truth about historic events? Not at all. Just like any other history book, especially widely promoted "best primary source" ones.

Your lack of education about history

You mean "lack of indoctrination about one version of history"?

we know that from the best primary source history books which have traced that rewriting in great detail.

Written and published by whom? :) Some biased writers whose books published only because what they wrote was suitable for publishers? What about books you never heard about because they was never published? They exists and a lot. Also with documents and other stuff. Try to find, say, "The assasination of Stalin and Beriya" by Y.Muhin. That is the view you definitely never heard about with perfect documentary proofs and solid logic.

Your lack of education about history

You mean "lack of indoctrination about one version of history"?