Shalom Chaverim,
Let me begin by stating that this site is not affiliated with Jews For Jesus. We probably need to define what we mean by "Messianic" since many consider Jews For Jesus a Messianic organization. I consider Jews For Jesus a Christian organization. Moishe Rosen, founder of Jews For Jesus, is a Christian missionary, schooled in a standard bible college and not trained as a rabbi. The Jews For Jesus organization has worked diligently teaching Jesus to the non-believing Jewish people, but it is Christianity being taught and not Messianic Judaism (in spite of JFJ efforts to make the two terms synonymous). I would like to see evangelism to the Jewish people which includes teaching Torah observance.
I see the Messianic Mov't as a return to Biblical Judaism, removing 2000 years of non-biblical teachings and restoring Torah observance to the body of believers. It seems too much effort is going into trying to bring down the Messianic Mov't and turn it into just another Christian denomination, I find that sad. And those who protest this Christianization are called divisive. If you remove the elements that set Messianics apart from Christianity, you lose what drew people to the truth of Messianic Judaism in the first place.
I think Christianity is threatened by our return to Torah truths and by our refusal to tolerate the pagan influences that have become a part of Christian doctrine. The Messianic emphasis on Torah is taken as somehow undermining the work of Yeshua. And our rejection of pagan influences is taken as judgemental, as causing strife within the body of Messiah. But Scripture tells us to "Prove all things; hold fast that which is good." (1 Thessalonians 5:21) Sha'ul did not teach us to tolerate false doctrines --- yet Christianity asks that for the sake of "unity" Messianics should overlook these differences and be a 'team player. That's not what we are called to do.
Shalom,
Ellen Kavanaugh