Here are some things to think about with the whole NT issue and statements, some of which you have included or paraphrased-
Paul says- 'In this way all Israel will be Saved' critique that
'Lost sheep of Israel'- critique that
'His blood be upon us'- critique that
How could Jesus teach Jews or anyone Truth if all we know about him is in a group of documents that are obviously corrupted for social and political gains by the Bishops led Gentile Church. Look at all of the misinformation and ignorance floating around about the basics of Judaism here.
Millions did loose their lives at the hands of the Disciples of Christ, they carried their Cross of Jesus onto the battle fields, wore Crosses, partook of Communion, were Baptized into the Father Son and Holy Ghost etc etc. You just don't like the horrible things they did, which is understandable, but look at our former religion and the horrible things they did and do. Will you let a Witness off the hook if they say 'but they weren't a 'real' Jehovah's Witness' if they did a bad thing'.
Tammy, your Jesus, or the Jesus of the NT is planning to destroy civilization as we know it and send the majority of humans to the Eternal Fires of Hell. Now you don't buy this literal bit, but that is the Christian Creed based on the NT which 'Jesus' supposedly inspired to have been written for humanity.
What I did, and many others have done, is to step back and ask the critical questions about this whole assumption. Some very nice results came from that study.