This is a subject of some importance, the view of the witnesses, likely inherited from Franz's influence, seems to be that early Christianity developed as a separate religion to the Jews.
The view of most contemporary scholars is that the separation occurred slowly, and that influential early Christians (e.g. such as Paul, Peter, John and James) still saw themselves as Jews.
To those of us that are no longer Christians (and, most ex-witnesses here, seem to gradually move to that position) this is not an important issue.
But to an organisation that claims it has "the truth," surely it should know the truth about its origins. Yet the evidence is that the modern day religion of Jehovah's witnesses, does not know the "truth" concerning the origins of early Christianity.
For those who seek to know more about the separation of early Christianity from Judaism, this Bible Archeological Society publication will help analyse the evidence.