The Israeli governments of the past 15 years (since Oslo) have been great at making threats and not carrying them out. Remember Rabin's threat about what would happen to the Palestinians if they used the rifles against us? Was the threat carried out? Do you remember Barak's threat right before we pulled out of Lebanon? Do you remember Sharon and Mofaz's threat right before the disengagement?
Israel has become the boy who cried wolf. The governments have made so many threats and not carried them out that threats now have zero credibility.