Answers to Quora Questions by Yair Davidiy (11 January 2018, 24 Tevet, 5778)
Who is more of a Jew, a man with ethnically Jewish parents who is a Messianic Jew or a convert to Judaism?
No-one is going to put themselves in place of the Almighty, more of this, more of that. We could also ask questions, What kind of convert? What kind of Messianic? etc. Nevertheless in general Judaism does not recognize Messianic Jews. There is no such thing. You can call yourself whatever you like but that may not change anything. A Jew who does not believe in One God, and/or who accepts another religion is in trouble. His status is problematic. There are some things one cannot change just because it feels right. Each case is different. Some of us are too tolerant for our own good, others perhaps not tolerant enough. If a specific individual is involved and an answer is needed consult an Orthodox Rabbi. The fact that a Rabbi may have to be consulted is already half an answer.