Judaism is the truth. Christianity is the truth fulfilled. Sadly, most Jews deny Christ as their Messiah. They have not recognized the completion, fulfillment, of the Old Testament.
I am not an expert, by any means, but that’s how I see it. When I read the Old Testament, I don’t consider it a “false” religion, as I would, for example, a Qoran. I consider it the old covenant - but still the word of God.
I understand, and agree with the basic sentiment.
However, as I posted elsewhere:
Christ is the Messiah
Christ is not the Messiah
One of them is false.