Wolfgang,
If your nexdoor neighbour would threaten you with death, and extinction and is serious about it, are you about to talk friendly with him - no you would go immediately to the police to report him.
Would the Jews have been able to negotiate with the Nazis - (are you a Nazi?) I think Jews have become a bit wary of this kind of senerio in their history- don't you think? Israelis will give Hamas recognition, as they were willing to do with the PLO when they changed their charter but only when Hamas will signal some peaceful intentions. Get used to that reality.