We have no problem since our NT teachings are consistent. What is it to you anyway?!
How do you deal with the fact that the evolutionary teachings have kept changing since its inception? All previous claims are now discarded as so much menstrual discharge. Yet, believers in this nonsense don't seem to become tired and disillusioned when what they previously believed is no longer held valid!?
You are confusing Judaism with Israelite texts. Judaism came along AFTER the Torah was written. Probably a good thousand years afterwards. The term "Jew" came along quite awhile after Moses. There were still thousands of years of people following the Hebrew God before Judaism. Many, including you, confuse Judaism with the Israelites. They are not the same. If you read the OT, you will find that it is inconsistent with all sect of Judaism at some level.
The New Testament is NOT inconsistent with the Old Testament, but it disagrees with Judaism.
Especially modern Judaism. However mainstream Christianity is inconsistent with the Bible itself. Likewise Judaism is inconsistent with the Old Testament.
To put it to you blunt, your point is pointless. Since Judaism is inconsistent with the OT, it is perfectly logical that Christianity would be inconsistent with Judaism.