Romans 2:28-29 (KJV)
28 For he is not a Jew, which is one outwardly; neither is that circumcision, which is outward in the flesh:
29 But he is a Jew, which is one inwardly; and circumcision is that of the heart, in the spirit, and not in the letter; whose praise is not of men, but of God.
A true Jew (I've met a few) keep Torah, and
though they'd disagree on whether Jesus is
the Messiah, they do all they can to be as
faithful to the Law as they can be. While I
don't agree with their theology, I respect
their spirituality. The 'Jews' you refer to are
certainly NOT the 'genuine article' as seen
in the Scriptures above.