>With all due respect, I believe you're allowing your modern sensibilities to cloud your judgment on this matter. Judaism and Christianity are very distinct religions today
I get what your trying to say. But I feel that you are mistaking what is identified as Judaism today, Rabbinic Judaism, with what was practiced during the time of Christ and the Apostles, ie 2nd Temple Judaism. The consensus is actually beginning to shift and show that during that time there were multiple sects of Judaism being practiced. The most well known sects being the Pharisees, Sadducees, Essenes, and the Christians. The Christians being the only ones that accepted Christ as the messiah of course. However, as the others fell away after the destruction of the Temple, Christianity survived and continued the 2nd Temple liturgical practices with some modification to place emphasis on Christ. Nowhere at this time was anything resembling what we know today as Rabbinic Judaism. Rabbinic Judaism came about much later primarily as reactionary movement against the growing influence of Christianity among the remaining Jewish population. There was no complied Talmud or Masoretic text at the time of the Apostles. And these texts would not appear for another 500+ years. The Judaism today is not the Israelite religion. The Israelite religion is Christianity. Another good video that debunks the claims of Rabbinic Judaism is Marching on Zion.
>They literally killed Him over His claim to be equal to God the Father.
That does not invalidate the fact that the religion was the same. It simply reiterates what we already know, that some Jews refused to see Christ as the messiah and the Son of God.
>Judaism and Christianity are very distinct religions today
I agree with this, because Rabbinic Judaism is much younger and lacks direct continuity with the 2nd Temple. I just want to emphasis again that for the Apostles, while there was a change in some practices and views within the religion with the coming of Christ, the religion stayed the same. Our worldview is the same, and our worship is directed toward the same God of Abraham, Isaac, and Jacob. We don't say that Abraham and Moses have a different religion from each other just because the pre-incarnate Christ revealed different things to each of them, or that their worship patterns were different, one with an altar outside and one with a tabernacle. So in that respect Christ revealing Himself to the Apostles doesn't change the religion to a distinct separate religion, it simply deepens the fullness of our religion. Everything that the prophets foretold, the apostles believed and witnessed through Christ. This was the acceptance of the faith of their fathers, that the prophets were correct and God is now among them.
>Just ask an orthodox Jew what he thinks about Jesus Christ, Anon.
An orthodox Jew practices Rabbinic Judaism. Again this is a much later reactionary innovation.
>I'm also skeptical of the claim that believing Christians are somehow 'Israel' today.
>and that we have been "grafted in" as additions, not replacements
The Gentiles were grafted into Israel. Israel is the spiritual body of Christ, the Church. Galatians 3:28-29. This claim that your skeptical about, has being the overwhelming consensus view of Christianity, Protestant, Catholic, and Orthodox, until only recently in the 19th century.