the question was about recognising monsieur Lustiger being jewish by the jews as for the nonjews a converted jew is allways a jew believing in Christ but still a jew. and to remind a few similarities between the two religions :both are fanatical and exclusive and you know what so is the islam. the main difference between judaism and the other is in the number of observants which makes it of no consequence outside israel where has been used as a tool in hands of early zionists.
One student killed, three wounded at Arizona campus during fight (a)
from the article: 'He'd say kaddish for his mother'