If Jewish people saw people who claim to follow Christianity acting like Jesus they might want to switch sides.
Jews believe in loving God and loving your neighbor and seeing that kind of living when I am around Jewish people might cause me to consider becoming a Jew like the late Sammy Davis Jr. did many years ago.
Some Jewish folk decide to follow Jesus and some Christian born people decide to become Jewish.
I can handle both.
Seemingly, if Christians saw Jesus obeying the Jewish Oral Law, as a Jew, as he does in some verses in the Christian Bible,they might also want to be Jewish.
Wouldn’t it be more desirable to imitate the original rather than to follow the words of those who came much after him?