Steve you seem to be missing the primary point Regardless of your theological views of J4J and Messianic Judaism there s no way a claim that some members of a large group say something is a BLP violation Under that logic the statement some Wikipedians are stupid jerks or some Americans are criminals would be BLP violations without sourcing Again this is completely aside from the fact that you are making a claim about the Christian attitude towards Messianic Judaism If there s any disagreement by fundamentalists on this matter I d be very interested in seeing a citation it should presumably be included in the article But the bottom line is that saying something about unnamed members of a large group is not a BLP violation