Jews didn't accept Christ as their savior through the
two millennium since his birth. Christians persecuted Jews
pretty much in its entire history. Post-holocaust Jews still
don't believe in Christ. Perhaps out of a sense of guilt of past
atrocities committed against the Jews the Christian world
of the west are happy to support the Jewish state of Israel
in the 20th century; or it could be the anticipation of the
second coming of Christ that has driven the west into
ass-kissing the chosen people of their God.
Why is the west happy to be poodles of the
Jewish state of Israel despite their rejection of
Christ? IMO that is a more interesting question than
why the Jews don't believe Jesus is their messiah.