What exactly are you summarizing? I see nothing of the above in Yehuda's post. Liars are and deceivers are groups who, under pretenses of being Jewish, go out and try to convert other Jews. Interestingly, they go after those are most susceptable and are easily fooled - college students, and russian Jews who lost touch with their Judaism because of the Soviet "discouragement" of practicing Judaism. So, tell me, what's the difference between a Jew who believes in Christ, and a Christian?
(2) "Jewish Christians should say no more to other Jews but go evangelize the Muslims"
Yehuda brought up a valid point. If Christ's message is universal & etc, why baptists concentrating on Jews? What about catholics, muslims, etc? Why do Jews for Jesus not admit openly that they are backed financially by baptists? What are the differences in beliefs between baptists and Jews for Jesus, and if there are none, why don't they call themselves baptists? Is a Jew not one who practices Judaism?
You neglect to mention that this definition hinges on theology that (gasp, shock) differs between rabbinic 'judaism' and New Testament Christianity.