I don't think that says it well at all. The Messianic Jews are not driving their beliefs out (asking rabbinical Jews to abandon their Jewish roots). And their proselytizing does not have a sinister motive behind it, either.
As for offensive lengths, how "offensive" is the following conversation/technique?:
(knock knock)
(Jewish person opens door)
Jew for Jesus (JFJ): Hi, I'd like to tell you about the Messiah, Jesus Christ.
Jew: No, thank you. I'm not interested.
JFJ: Well, here's my card. Please call me if you ever change your mind.
What would really be offensive is if the JFJ came to the door and said, "Accept Jesus right now, or you're burning in Hell, you filthy Jew!" If he/she said that, not only would they be a bad evangelist, but I doubt they would get any converts.
One more thing. It is not possible to correctly equate homosexuality with being Jewish; they are light years apart. God never condemned being a Jew as a sin from which one should repent.