Should there be a desire to be Jewish? Why?

Hello and have a good week!
I have a question: If the rabbi were a Gentile, would he convert?
I would like to clarify that this is not a personal question about the character of the rabbi, but a question of content. That is, is there actually any point in converting (and not practically, would the rabbi himself convert)?
I will explain my question: I understand that philosophically it is most reasonable to conclude that there is a Creator of the world. Similarly, in light of good arguments, I also conclude that there was a giving of the Torah, and therefore, as a Jew, I am obligated to the 33 commandments, etc., etc.
But, how is all this supposed to lead the Gentile to keep the commandments? At most, if I were a Gentile, I would accept the giving of the Torah (which was for the Jews), and thus be obligated to the seven commandments of Noah. But why should I convert? I am not talking about a consideration of benefit, but where can one get the impression that the Creator Himself is interested in them joining the Jewish religion? And if He is indeed not interested, why is there a motivation for Gentiles to convert? Is it just considerations of profit that are not related to God's will?
We can put it this way: Should there be an intellectual desire to be Jewish? Why?