Note: "I am a Messianic Jew... you have a problem with Jews ? " ==> This guy is trying to falsely create anti-semitism. Any criticism or debate on this is not allowed on FR Religion Forum. You yourself have said that
However, because Judaism also involves genetics posters cannot be as rude as they would be in instances where a theological label is a matter of choice. For instance, it is ok in "open" RF debate to say "Scientologists are crazy" but it is anti-Semitic to say "Jews are crazy." --> hence the poster is pushing the envelope in this. If he wishes to debate, fine, but to push it to "Ok, I'm a Jew, got a problem with that", when there is no discussion on Judaism, indicates the intention to push the envelope and to end a debate.
http://www.freerepublic.com/focus/religion/2653570/posts?page=164