But a Jew can not convert to Christianity because Christianity is a Jewish sect. A Jew can decide to accept Yeshua as Messiah, but the Jew remains a Jew. All of the first Christians were not only Jews, but Torah Observant Jews. Shaul (known as Paul to the goyim) was a Pharisee.
G-d intended to bring worship of Himself and to bring His Messiah to the nations through the Jewish people. Christianity is not proof of the failure of Judaism, but of its success in this mission.
The fact split of the Church from the Synagogue was not G-d's plan. It was not G-d's plan that the Church forbid any Christian from practicing of Jewish customs. It was not G-d's plan to add a curse to the Amidah that would curse Christians. That's what men did.
Jews do not become non-Jews when they accept Yeshua as Meshiach.
So, no, G-d was not wrong.
Shalom.
Thank you! Beautifully said!
If you bring a bat on to a basketball court, you may be inventing a fun new game, and there is nothing wrong with that, but you will not be playing basketball.
Christianity is not Judaism.