A Jew that worshiped idols(Including believing in Yeshua), it is like he worshiped idols for everything he did. He is not like a Jew, that committed a sin, and deserves stoning, it is like he violated everything in the Torah. And this koferim, they are the farthest things from Jews. And they will never be accepted back, ever! Then it quotes Mishlei- Bring him a Raaya[proof, to what he said](Yad Chazaka, Hilchot Avodah Zarah,2:5).