No resemblance?As I see it, neither does Judaism bear much resemblance to the Temple-worshiping Jews of the first century.
and those that disagreed were apostates and heretics and subsequently killed ....
I don't remember a lot of heretic killing by the Church until after the Roman emperor Constantine supposedly became a Christian. IIRC, I think that it was Christians being killed as apostates and heretics by both Jews and Romans. In the first century AD, it was a lot easier not to be a Christian than to be one.
BTW, I'm a Messianic Jew ....crazy, huh?